|
|
| |
|
| |
Security
January 3, 2007
This article was contributed by Jake Edge.
A particularly nasty cross-site
scripting (XSS) vulnerability has surfaced that impacts Firefox users
who have installed the Adobe Reader (Acrobat/PDF) plugin. Proof of concept
exploits have been published on Bugtraq as well as several blogs
(here
for example). Adobe has fixed the problem in Acrobat version 8; which is
only available for Windows, no word yet on a fix for the Linux plugin (which
is based on Acrobat version 7).
The technique was first disclosed last week at the 23rd Chaos Communication
Congress by Stefano Di Paola and Giorgio Fedon in their
Subverting
AJAX presentation. Sven Vetsch discovered another wrinkle and publicized
it on his
blog.
The crux of the vulnerability is a link with a URL of the following form:
http://host/path/to/file.pdf#anystring=javascript:malicious_code_here
The host and path to file are legitimate URL paths to a PDF file that is
hosted somewhere on the net, quite possibly at a site that is trusted
by the user. The attacker need not have any access to the PDF file,
but can have his code executed while appearing to be a simple download from
the affected site. It is the ability to turn any PDF hosted on any site
into an XSS attack that makes this vulnerability so insidious.
The vulnerability exploits a feature of the Adobe plugin that is not shared
with other mechanisms for viewing PDFs from the web (including using the
acroread external program that is also supplied by Adobe).
Arguments can be passed to the plugin via the information after the '#' and
can be used to specify a specific page or search string in the PDF. It can
also be used to populate PDF forms using '#FDF=URL' arguments and the
information for the forms is retrieved from the URL.
Evidently Adobe does not check for FDF or two other similar argument types
(which is why 'anystring=' works)
and blindly asks the browser to fetch the URL specified. If the URL is
javascript code as described above, the plugin does not detect that case and
in effect forces the browser to execute it.
Any site hosting a PDF file is vulnerable and there is little that the site
can do; there is no indication that the request is anything out of the
ordinary because the string after the '#' is not passed as part of the request.
Concerned sites could stop hosting PDF files, but that seems rather unlikely.
Other server-side
solutions are being discussed
as there is a concern that users are unlikely to upgrade their browser
plugins. Hosting sites would much rather that they be in control of
whether their PDF files can appear in links with malicious content. Most
XSS problems can be handled by proper server side filtering of user
supplied content, but this particular vulnerability is different.
So far there are no reports of other PDF plugins that follow Adobe's lead
in retrieving URLs that appear in links to PDF files. In this author's
experience, PDF viewing utilities are separate programs that get
invoked by the browser after it downloads a PDF file. For xpdf and
kpdf (and presumably others), this works just fine but Adobe chose
to provide a means of more closely integrating PDF viewing into the browser.
Unfortunately, the fact that this plugin is closed source implies that
users, especially Linux users, must wait for Adobe to fix the problem. We
cannot fix it ourselves.
One could certainly imagine a similar mistake being made by one of the other
PDF viewer development teams; Adobe is hardly alone in making bad choices in
developing software. However, the fix for an open source PDF viewer would
likely be
available within hours of the report. Adobe was notified about this problem
on 15 October according to the
advisory, but there is still
no fix for Linux. Disabling the plugin would seem to be prudent.
Fixing the affected software is just the start of the task of fixing the
overall problem. As mentioned above, users are not particularly good at
picking up security fixes even when they know about them. Getting the message
out on this particular problem is a big hurdle. The alternative is to
educate users so that they can recognize maliciously crafted links to PDFs
and that is almost certainly a harder task.
The potential for a widespread outbreak exploiting this vulnerability
is fairly high and this will probably not be the
last we will hear about it. It certainly has the possibility of
damaging the reputation of PDF amongst even casual web users and that is
probably keeping some folks at Adobe awake at nights.
Comments (20 posted)
New vulnerabilities
cacti: multiple vulnerabilities
| Package(s): | cacti |
CVE #(s): | CVE-2006-6799
|
| Created: | January 1, 2007 |
Updated: | January 26, 2007 |
| Description: |
The network monitoring and graphing frontend Cacti has three vulnerabilities.
The cmd.php script allows command line usage and is also installed in a
web-accessible location. The cmd.php input is insufficiently sanitized,
a passed-in URL can be used to inject arbitrary SQL code.
The cmd.php script can be used by a remote attacker to execute arbitrary
shell commands via improperly sanitized results from SQL queries. |
| Alerts: |
|
Comments (none posted)
denyhosts: denial of service
| Package(s): | denyhosts |
CVE #(s): | CVE-2006-6301
|
| Created: | January 3, 2007 |
Updated: | January 3, 2007 |
| Description: |
A botched regular expression allows a remote attacker to add arbitrary hosts to the denyhosts blacklist, causing those hosts to be unable to make ssh connections to the target system. |
| Alerts: |
|
Comments (2 posted)
elog: multiple vulnerabilities
| Package(s): | elog |
CVE #(s): | CVE-2006-5063
CVE-2006-5790
CVE-2006-5791
CVE-2006-6318
|
| Created: | December 28, 2006 |
Updated: | January 3, 2007 |
| Description: |
elog, a web-based electronic logbook has multiple vulnerabilities that
may lead to arbitrary code execution.
Log entry editing in HTML has a cross-site scripting vulnerability.
A number of format string vulnerabilities may be used for the execution of
arbitrary code. There are cross-site scripting vulnerabilities related to
the creation of new logbook entries.
There is insufficient error handling in config the file parsing that may be used for a denial of service attack. |
| Alerts: |
|
Comments (none posted)
mono: source disclosure attack
| Package(s): | mono |
CVE #(s): | CVE-2006-6104
|
| Created: | December 21, 2006 |
Updated: | January 17, 2007 |
| Description: |
The Mono ASP.NET server XSP has a source disclosure attack vulnerability.
A malicious user can use this to acquire the source code of a server-side
application. |
| Alerts: |
|
Comments (none posted)
openser: buffer overflow
| Package(s): | openser |
CVE #(s): | |
| Created: | December 26, 2006 |
Updated: | January 3, 2007 |
| Description: |
A buffer overflow was discovered in the
"parse_expression" function of the "permissions" module of the SIP router
OpenSER, versions up to and including 1.1.0. The OpenSER "permissions"
module is used to determine if a SIP call has appropriate permission to be
established. The "parse_expression" function is used during parsing of the
modules local allow/deny configuration files. |
| Alerts: |
|
Comments (none posted)
w3m: denial of service
| Package(s): | w3m |
CVE #(s): | |
| Created: | December 28, 2006 |
Updated: | January 15, 2007 |
| Description: |
The W3M textual web browser has a format string vulnerability.
If the run-time options -dump or -backend are used, W3M can be made to
crash if certain escape sequences occur in the Common Name of a web site
X.509 certificate. |
| Alerts: |
|
Comments (none posted)
Updated vulnerabilities
apache: cross-site scripting
| Package(s): | apache |
CVE #(s): | CVE-2006-3918
|
| Created: | August 9, 2006 |
Updated: | April 4, 2008 |
| Description: |
From the Red Hat advisory: "A bug was found in Apache where an invalid Expect header sent to the server
was returned to the user in an unescaped error message. This could
allow an attacker to perform a cross-site scripting attack if a victim was
tricked into connecting to a site and sending a carefully crafted Expect
header." |
| Alerts: |
|
Comments (none posted)
apache-mod_auth_kerb: off-by-one error
| Package(s): | apache-mod_auth_kerb |
CVE #(s): | CVE-2006-5989
|
| Created: | November 24, 2006 |
Updated: | January 23, 2007 |
| Description: |
An off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows
remote attackers to cause a denial of service (crash) via a crafted
Kerberos message that triggers a heap-based buffer overflow in the
component array. |
| Alerts: |
|
Comments (none posted)
bind: denial of service
| Package(s): | bind |
CVE #(s): | CVE-2006-4095
CVE-2006-4096
|
| Created: | September 7, 2006 |
Updated: | February 1, 2007 |
| Description: |
Bind has two denial of service vulnerabilities.
Recursive servers queries for SIG records will trigger an assertion
failure if more than one RR set is returned.
An INSIST failure can be triggered by sending a large number of
recursive queries. |
| Alerts: |
|
Comments (none posted)
bugzilla: multiple vulnerabilities
| Package(s): | bugzilla |
CVE #(s): | CVE-2006-5453
CVE-2006-5454
CVE-2006-5455
|
| Created: | November 10, 2006 |
Updated: | August 28, 2007 |
| Description: |
Bugzilla has the following vulnerabilities:
Input data passed to various fields is not properly sanitized before
being passed back to users.
Users can gain unauthorized access to read attachment
descriptions while using diff mode.
HTTP GET and HTTP POST requests can be used to perform unauthorized
actions due to improper verification.
Input that is passed to showdependencygraph.cgi is not properly
sanitized before being returned to users. |
| Alerts: |
|
Comments (none posted)
busybox: insecure password generation
| Package(s): | busybox |
CVE #(s): | CVE-2006-1058
|
| Created: | May 5, 2006 |
Updated: | May 2, 2007 |
| Description: |
The BusyBox 1.1.1 passwd command does not use a proper salt when generating
passwords. This would create an instance where a brute force attack could
take very little time. |
| Alerts: |
|
Comments (2 posted)
bzip2: race condition and infinite loop
| Package(s): | bzip2 |
CVE #(s): | CAN-2005-0953
CAN-2005-1260
|
| Created: | May 17, 2005 |
Updated: | January 10, 2007 |
| Description: |
A race condition in bzip2 1.0.2 and earlier allows local users to modify
permissions of arbitrary files via a hard link attack on a file while it is
being decompressed, whose permissions are changed by bzip2 after the
decompression is complete. Also specially crafted bzip2 archives may cause
an infinite loop in the decompressor. |
| Alerts: |
|
Comments (2 posted)
cpio: arbitrary code execution
| Package(s): | cpio |
CVE #(s): | CVE-2005-4268
|
| Created: | January 2, 2006 |
Updated: | March 17, 2010 |
| Description: |
Richard Harms discovered that cpio did not sufficiently validate file
properties when creating archives. Files with e. g. a very large size
caused a buffer overflow. By tricking a user or an automatic backup
system into putting a specially crafted file into a cpio archive, a
local attacker could probably exploit this to execute arbitrary code
with the privileges of the target user (which is likely root in an
automatic backup system). |
| Alerts: |
|
Comments (none posted)
vixie-cron: privilege escalation
| Package(s): | cron |
CVE #(s): | CVE-2006-2607
|
| Created: | May 31, 2006 |
Updated: | June 1, 2009 |
| Description: |
The Vixie cron daemon does not check the return code from setuid(); if that call can be made to fail, a local attacker may be able to execute commands as root. |
| Alerts: |
|
Comments (1 posted)
cscope: buffer overflows
| Package(s): | cscope |
CVE #(s): | CVE-2006-4262
|
| Created: | October 2, 2006 |
Updated: | June 16, 2009 |
| Description: |
Will Drewry of the Google Security Team discovered several buffer overflows
in cscope, a source browsing tool, which might lead to the execution of
arbitrary code. |
| Alerts: |
|
Comments (none posted)
cscope: buffer overflows
| Package(s): | cscope |
CVE #(s): | CVE-2004-2541
|
| Created: | May 22, 2006 |
Updated: | June 19, 2009 |
| Description: |
A buffer overflow in Cscope 15.5, and possibly multiple overflows, allows
remote attackers to execute arbitrary code via a C file with a long
#include line that is later browsed by the target. |
| Alerts: |
|
Comments (1 posted)
Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
| Package(s): | cyrus-sasl |
CVE #(s): | CVE-2006-1721
|
| Created: | April 21, 2006 |
Updated: | September 4, 2007 |
| Description: |
Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5
process that could lead to a Denial of Service. An attacker could possibly
exploit this vulnerability by sending specially crafted data stream to the
Cyrus-SASL server, resulting in a Denial of Service even if the attacker is
not able to authenticate. |
| Alerts: |
|
Comments (none posted)
dbus: denial of service
| Package(s): | dbus |
CVE #(s): | CVE-2006-6107
|
| Created: | December 15, 2006 |
Updated: | February 12, 2007 |
| Description: |
Unspecified vulnerability in the match_rule_equal function in bus/signals.c
in D-Bus before 1.0.2 allows local applications to remove match rules for
other applications and cause a denial of service (lost process messages). |
| Alerts: |
|
Comments (none posted)
dovecot: index cache file handling error
| Package(s): | dovecot |
CVE #(s): | CVE-2006-5973
|
| Created: | November 29, 2006 |
Updated: | May 8, 2007 |
| Description: |
The dovecot IMAP server has an error in its index cache file handling code which could be exploited by an authenticated user to execute arbitrary code. Only servers with the (non-default) mmap_disable=yes option setting are vulnerable. |
| Alerts: |
|
Comments (none posted)
elinks: arbitrary file access
| Package(s): | elinks |
CVE #(s): | CVE-2006-5925
|
| Created: | November 16, 2006 |
Updated: | October 22, 2009 |
| Description: |
The elinks text-mode browser has an arbitrary file access vulnerability
in the Elinks SMB protocol handler. If a user can be tricked into
visiting a specially crafted web page, arbitrary files may be read or
written with the user's permissions. |
| Alerts: |
|
Comments (none posted)
ffmpeg: buffer overflows
| Package(s): | ffmpeg |
CVE #(s): | CVE-2006-4799
CVE-2006-4800
|
| Created: | September 14, 2006 |
Updated: | May 28, 2007 |
| Description: |
the AVI processing code in FFmpeg has a number of buffer overflow
vulnerabilities.
If an attacker can trick a user into loading a specially crafted
crafted AVI, arbitrary code can be executed with the user's privileges. |
| Alerts: |
|
Comments (2 posted)
Mozilla stuff: multiple vulnerabilities
Comments (none posted)
freeradius: several vulnerabilities
| Package(s): | freeradius |
CVE #(s): | CVE-2005-4745
CVE-2005-4746
|
| Created: | August 8, 2006 |
Updated: | April 24, 2007 |
| Description: |
Several remote vulnerabilities have been discovered in freeradius, a
high-performance RADIUS server, which may lead to SQL injection or denial
of service. |
| Alerts: |
|
Comments (none posted)
freetype: integer overflows
| Package(s): | freetype |
CVE #(s): | CVE-2006-0747
CVE-2006-1861
CVE-2006-2493
CVE-2006-2661
CVE-2006-3467
|
| Created: | June 8, 2006 |
Updated: | June 1, 2010 |
| Description: |
The FreeType library has several integer overflow vulnerabilities.
If a user can be tricked into installing a specially
crafted font file, arbitrary code can be executed with the privilege
of the user. |
| Alerts: |
|
Comments (none posted)
ftpd: privilege escalation
| Package(s): | ftpd |
CVE #(s): | CVE-2006-5778
|
| Created: | November 10, 2006 |
Updated: | February 14, 2007 |
| Description: |
Ftpd is vulnerable to a privilege escalation attack,
an incorrect seteuid() call can be used by an FTP user to gain
unauthorized access to files or directories. |
| Alerts: |
|
Comments (none posted)
gcc: file overwrite vulnerability
| Package(s): | gcc |
CVE #(s): | CVE-2006-3619
|
| Created: | September 6, 2006 |
Updated: | March 14, 2008 |
| Description: |
The fastjar utility found in the GNU compiler collection does not perform adequate file path checking, allowing the creation or overwriting of files outside of the current directory tree. |
| Alerts: |
|
Comments (none posted)
gdb: buffer overflow
| Package(s): | gdb |
CVE #(s): | CVE-2006-4146
|
| Created: | September 15, 2006 |
Updated: | June 12, 2007 |
| Description: |
A buffer overflow in dwarfread.c and dwarf2read.c debugging code in GNU
Debugger (GDB) 6.5 allows user-assisted attackers, or restricted users, to
execute arbitrary code via a crafted file with a location block
(DW_FORM_block) that contains a large number of operations. |
| Alerts: |
|
Comments (none posted)
gdm: improper file permissions
| Package(s): | gdm |
CVE #(s): | CVE-2006-1057
|
| Created: | April 19, 2006 |
Updated: | May 2, 2007 |
| Description: |
The .ICEauthority file may be created with the wrong ownership and permissions; gdm 2.14.2 fixes the problem. |
| Alerts: |
|
Comments (none posted)
gedit: format string vulnerability
| Package(s): | gedit |
CVE #(s): | CAN-2005-1686
|
| Created: | June 9, 2005 |
Updated: | February 5, 2009 |
| Description: |
A format string vulnerability has been discovered in gedit. Calling
the program with specially crafted file names caused a buffer
overflow, which could be exploited to execute arbitrary code with the
privileges of the gedit user. |
| Alerts: |
|
Comments (1 posted)
gnupg: stack overwrite
| Package(s): | gnupg |
CVE #(s): | CVE-2006-6235
|
| Created: | December 12, 2006 |
Updated: | March 13, 2007 |
| Description: |
A "stack overwrite" vulnerability in GnuPG (gpg) allows attackers to
execute arbitrary code via crafted OpenPGP packets that cause GnuPG to
dereference a function pointer from deallocated stack memory. |
| Alerts: |
|
Comments (3 posted)
grip: buffer overflow
| Package(s): | grip |
CVE #(s): | CAN-2005-0706
|
| Created: | March 10, 2005 |
Updated: | November 19, 2008 |
| Description: |
Grip, a CD ripper, has a buffer overflow vulnerability that can
occur when the CDDB server returns more than 16 matches. |
| Alerts: |
|
Comments (none posted)
gv: stack-based buffer overflow
| Package(s): | gv |
CVE #(s): | CVE-2006-5864
|
| Created: | November 20, 2006 |
Updated: | April 9, 2007 |
| Description: |
Stack-based buffer overflow in the ps_gettext function in ps.c for GNU gv
3.6.2, and possibly earlier versions, allows user-assisted attackers to
execute arbitrary code via a PostScript (PS) file with certain headers that
contain long comments, as demonstrated using the DocumentMedia header. |
| Alerts: |
|
Comments (none posted)
gzip: multiple vulnerabilities
| Package(s): | gzip |
CVE #(s): | CVE-2006-4334
CVE-2006-4335
CVE-2006-4336
CVE-2006-4337
CVE-2006-4338
|
| Created: | September 19, 2006 |
Updated: | January 20, 2010 |
| Description: |
Tavis Ormandy of the Google Security Team discovered two denial of service
flaws in the way gzip expanded archive files. If a victim expanded a
specially crafted archive, it could cause the gzip executable to hang or
crash.
Tavis Ormandy of the Google Security Team discovered several code execution
flaws in the way gzip expanded archive files. If a victim expanded a
specially crafted archive, it could cause the gzip executable to crash or
execute arbitrary code. |
| Alerts: |
|
Comments (1 posted)
gzip: arbitrary command execution
| Package(s): | gzip |
CVE #(s): | CAN-2005-0758
|
| Created: | August 1, 2005 |
Updated: | January 10, 2007 |
| Description: |
zgrep in gzip before 1.3.5 does not handle shell metacharacters like '|'
and '&' properly when they occurred in input file names. This could be
exploited to execute arbitrary commands with user privileges if zgrep is
run in an untrusted directory with specially crafted file names. |
| Alerts: |
|
Comments (2 posted)
imagemagick: buffer overflows
| Package(s): | imagemagick |
CVE #(s): | CVE-2006-5868
|
| Created: | November 28, 2006 |
Updated: | February 16, 2007 |
| Description: |
Daniel Kobras discovered multiple buffer overflows in ImageMagick's SGI
file format decoder. By tricking a user or an automated system into
processing a specially crafted SGI image, this could be exploited to
execute arbitrary code with the user's privileges. |
| Alerts: |
|
Comments (1 posted)
ImageMagick: buffer overflows
| Package(s): | ImageMagick |
CVE #(s): | CVE-2006-5456
|
| Created: | October 31, 2006 |
Updated: | March 8, 2007 |
| Description: |
Multiple buffer overflows in GraphicsMagick before 1.1.7 and ImageMagick
6.0.7 allow user-assisted attackers to cause a denial of service and
possibly execute execute arbitrary code via (1) a DCM image that is not
properly handled by the ReadDCMImage function in coders/dcm.c, or (2) a
PALM image that is not properly handled by the ReadPALMImage function in
coders/palm.c. |
| Alerts: |
|
Comments (2 posted)
imlib2: arbitrary code execution
| Package(s): | imlib2 |
CVE #(s): | CVE-2006-4806
CVE-2006-4807
CVE-2006-4808
CVE-2006-4809
|
| Created: | November 6, 2006 |
Updated: | August 13, 2007 |
| Description: |
M. Joonas Pihlaja discovered that imlib2 did not sufficiently verify the
validity of ARGB, JPG, LBM, PNG, PNM, TGA, and TIFF images. If a user
were tricked into viewing or processing a specially crafted image with
an application that uses imlib2, the flaws could be exploited to execute
arbitrary code with the user's privileges. |
| Alerts: |
|
Comments (none posted)
kdegraphics: stack overflow
| Package(s): | kdegraphics |
CVE #(s): | CVE-2006-6297
|
| Created: | December 12, 2006 |
Updated: | January 13, 2007 |
| Description: |
A stack overflow in the KFILE JPEG (kfile_jpeg) plugin in kdegraphics3, as
used by konqueror, digikam, and other KDE image browsers, allows remote
attackers to cause a denial of service (stack consumption) via a crafted
EXIF section in a JPEG file, which results in an infinite recursion. |
| Alerts: |
|
Comments (none posted)
kdelibs: integer overflow
| Package(s): | kdelibs |
CVE #(s): | CVE-2006-4811
|
| Created: | October 18, 2006 |
Updated: | March 5, 2007 |
| Description: |
The KDE khtml library can pass untrusted parameters into Qt, allowing a hostile user to trigger an integer overflow there and execute arbitrary code. |
| Alerts: |
|
Comments (none posted)
kdelibs: kate backup file permission leak
| Package(s): | kdelibs kate kwrite |
CVE #(s): | CAN-2005-1920
|
| Created: | July 19, 2005 |
Updated: | September 21, 2010 |
| Description: |
Kate / Kwrite, as shipped with KDE 3.2.x up to including 3.4.0, creates a file backup before saving a modified file. These backup files are created with default permissions, even if the original file had more strict permissions set. See this advisory for more information. |
| Alerts: |
|
Comments (1 posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-4623
|
| Created: | October 18, 2006 |
Updated: | November 14, 2007 |
| Description: |
The kernel DVB layer can be caused to crash with maliciously-formatted unidirectional lightweight encapsulation (ULE) data. |
| Alerts: |
|
Comments (none posted)
kernel: bridging code buffer overflow
| Package(s): | kernel |
CVE #(s): | CVE-2006-5751
|
| Created: | December 6, 2006 |
Updated: | January 3, 2007 |
| Description: |
A buffer overflow in the bridging code in kernels through 2.6.18.3 can lead to a denial of service or potential code execution. The 2.6.18.4 kernel contains the fix. |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-4535
CVE-2006-4538
|
| Created: | September 18, 2006 |
Updated: | January 5, 2009 |
| Description: |
Sridhar Samudrala discovered a local denial of service vulnerability
in the handling of SCTP sockets. By opening such a socket with a
special SO_LINGER value, a local attacker could exploit this to crash
the kernel. (CVE-2006-4535)
Kirill Korotaev discovered that the ELF loader on the ia64 and sparc
platforms did not sufficiently verify the memory layout. By attempting
to execute a specially crafted executable, a local user could exploit
this to crash the kernel. (CVE-2006-4538) |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-4572
CVE-2006-4997
|
| Created: | November 6, 2006 |
Updated: | January 17, 2007 |
| Description: |
Some vulnerabilities were discovered in the Linux 2.6 kernel:
There are possibly exploitable bugs in the netfilter for IPv6 code.
(CVE-2006-4572)
The ATM subsystem of the Linux kernel could allow a remote attacker to
cause a Denial of Service (panic) via unknown vectors that cause the ATM
subsystem to access the memory of socket buffers after they are freed.
(CVE-2006-4997) |
| Alerts: |
|
Comments (none posted)
kernel: denial of service by memory consumption
| Package(s): | kernel |
CVE #(s): | CVE-2006-2936
|
| Created: | July 17, 2006 |
Updated: | November 14, 2007 |
| Description: |
The ftdi_sio driver (usb/serial/ftdi_sio.c) in Linux kernel 2.6.x up to
2.6.17, and possibly later versions, allows local users to cause a denial
of service (memory consumption) by writing more data to the serial port
than the driver can handle, which causes the data to be queued. |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-5757
|
| Created: | November 13, 2006 |
Updated: | November 14, 2007 |
| Description: |
From the MOKB-05-11-2006
advisory: "The ISO9660 filesystem handling code of the Linux
2.6.x kernel fails to properly handle corrupted data structures, leading to
an exploitable denial of service condition. This particular vulnerability
seems to be caused by a race condition and a signedness issue. When
performing a read operation on a corrupted ISO9660 fs stream, the
isofs_get_blocks() function will enter an infinite loop when
__find_get_block_slow() callback from sb_getblk() fails ("due to various
races between file io on the block device and getblk")." |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-2935
CVE-2006-4145
CVE-2006-3745
|
| Created: | September 1, 2006 |
Updated: | July 30, 2008 |
| Description: |
Previous versions of the kernel package are subject to several
vulnerabilities. Certain malformed UDF filesystems can cause the system to
crash (denial of service). Malformed CDROM firmware or USB storage devices
(such as USB keys) could cause system crash (denial of service), and if
they were intentionally malformed, can cause arbitrary code to run with
elevated privileges. In addition, the SCTP protocol is subject to a remote
system crash (denial of service) attack. |
| Alerts: |
|
Comments (none posted)
koffice: integer overflow
| Package(s): | koffice |
CVE #(s): | CVE-2006-6120
|
| Created: | November 30, 2006 |
Updated: | February 20, 2007 |
| Description: |
The KOffice office suite has an integer overflow
vulnerability. If an attacker can trick a user into opening a
specially crafted PowerPoint (PPT) file, KOffice can be caused to crash or
possibly execute arbitrary code with the user's privileges. |
| Alerts: |
|
Comments (none posted)
krb5: local privilege escalation
| Package(s): | krb5 |
CVE #(s): | CVE-2006-3083
|
| Created: | August 9, 2006 |
Updated: | July 7, 2010 |
| Description: |
Some kerberos applications fail to check the results of setuid() calls, with the result that, if that call fails, they could continue to execute as root after thinking they had switched to a nonprivileged user. A local attacker who can cause these calls to fail (through resource exhaustion, presumably) could exploit this bug to gain root privileges. |
| Alerts: |
|
Comments (none posted)
libgadu: memory alignment bug
| Package(s): | libgadu |
CVE #(s): | CAN-2005-2370
|
| Created: | July 29, 2005 |
Updated: | June 25, 2007 |
| Description: |
Szymon Zygmunt and Michal Bartoszkiewicz discovered a memory alignment
error in libgadu (from ekg, console Gadu Gadu client, an instant
messaging program) which is included in gaim, a multi-protocol instant
messaging client, as well. This can not be exploited on the x86
architecture but on others, e.g. on Sparc and lead to a bus error,
in other words a denial of service.
|
| Alerts: |
|
Comments (none posted)
libgd2: denial of service
| Package(s): | libgd2 |
CVE #(s): | CVE-2006-2906
|
| Created: | June 14, 2006 |
Updated: | January 16, 2007 |
| Description: |
Certain GIF images can cause libgd2 to go into an infinite loop, adversely affecting the performance of image processing applications. |
| Alerts: |
|
Comments (none posted)
libgsf: heap buffer overflow
| Package(s): | libgsf |
CVE #(s): | CVE-2006-4514
|
| Created: | November 30, 2006 |
Updated: | January 11, 2007 |
| Description: |
The GNOME library libgsf, which is used for writing structured file
formats, has a heap buffer overflow that can be exploited for the
purpose of executing arbitrary code. |
| Alerts: |
|
Comments (none posted)
libmodplug: boundary errors
| Package(s): | libmodplug |
CVE #(s): | CVE-2006-4192
|
| Created: | December 11, 2006 |
Updated: | May 4, 2011 |
| Description: |
Luigi Auriemma has reported various boundary errors in load_it.cpp and
a boundary error in the "CSoundFile::ReadSample()" function in
sndfile.cpp. A remote attacker can entice a user to read crafted modules
or ITP files, which may trigger a buffer overflow resulting in the
execution of arbitrary code with the privileges of the user running the
application. |
| Alerts: |
|
Comments (none posted)
libpng: buffer overflow
| Package(s): | libpng |
CVE #(s): | CVE-2006-3334
|
| Created: | July 19, 2006 |
Updated: | December 15, 2008 |
| Description: |
In pngrutil.c, the function png_decompress_chunk() allocates
insufficient space for an error message, potentially overwriting stack
data, leading to a buffer overflow. |
| Alerts: |
|
Comments (none posted)
libpng: heap based buffer overflow
| Package(s): | libpng |
CVE #(s): | CVE-2006-0481
|
| Created: | February 13, 2006 |
Updated: | December 15, 2008 |
| Description: |
A heap based buffer overflow bug was found in the way libpng strips alpha
channels from a PNG image. An attacker could create a carefully crafted PNG
image file in such a way that it could cause an application linked with
libpng to crash or execute arbitrary code when the file is opened by a
victim. |
| Alerts: |
|
Comments (1 posted)
libtiff: buffer overflow
| Package(s): | libtiff |
CVE #(s): | CVE-2006-2193
|
| Created: | June 15, 2006 |
Updated: | September 1, 2008 |
| Description: |
The t2p_write_pdf_string function in libtiff 3.8.2 and earlier is vulnerable
to a buffer overflow. Attackers can use a TIFF file with UTF-8 characters
in the DocumentName tag to overflow a buffer, causing a denial of service,
and possibly the execution of arbitrary code. |
| Alerts: |
|
Comments (none posted)
libvncserver: authentication bypass
| Package(s): | libvncserver |
CVE #(s): | CVE-2006-2450
|
| Created: | August 4, 2006 |
Updated: | March 19, 2007 |
| Description: |
LibVNCServer fails to properly validate protocol types effectively
letting users decide what protocol to use, such as "Type 1 - None".
LibVNCServer will accept this security type, even if it is not offered
by the server. |
| Alerts: |
|
Comments (none posted)
libxml2 - arbitrary code execution
| Package(s): | libxml2 |
CVE #(s): | CAN-2004-0110
|
| Created: | February 26, 2004 |
Updated: | August 19, 2009 |
| Description: |
Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6.
When fetching a remote resource via FTP or HTTP, libxml2 uses special
parsing routines. These routines can overflow a buffer if passed a very
long URL. If an attacker is able to find an application using libxml2 that
parses remote resources and allows them to influence the URL, then this
flaw could be used to execute arbitrary code. |
| Alerts: |
|
Comments (none posted)
libxml2: multiple buffer overflows
| Package(s): | libxml2 |
CVE #(s): | CAN-2004-0989
|
| Created: | October 28, 2004 |
Updated: | August 19, 2009 |
| Description: |
libxml2 prior to version 2.6.14 has multiple buffer overflow
vulnerabilities, if a local user passes a specially crafted
FTP URL, arbitrary code may be executed. |
| Alerts: |
|
Comments (none posted)
linux-restricted-modules: nVidia driver vulnerability
| Package(s): | linux-restricted-modules |
CVE #(s): | CVE-2006-5379
|
| Created: | November 6, 2006 |
Updated: | January 11, 2007 |
| Description: |
Derek Abdine discovered that the NVIDIA Xorg driver did not correctly
verify the size of buffers used to render text glyphs. When displaying
very long strings of text, the Xorg server would crash. If a user were
tricked into viewing a specially crafted series of glyphs, this flaw
could be exploited to run arbitrary code with root privileges. |
| Alerts: |
|
Comments (none posted)
lynx: arbitrary command execution
| Package(s): | lynx |
CVE #(s): | CVE-2005-2929
|
| Created: | November 14, 2005 |
Updated: | September 14, 2009 |
| Description: |
An arbitrary command execute bug was found in the lynx "lynxcgi:" URI
handler. An attacker could create a web page redirecting to a malicious URL
which could execute arbitrary code as the user running lynx. |
| Alerts: |
|
Comments (none posted)
mysql: format string bug
| Package(s): | mysql |
CVE #(s): | CVE-2006-3469
|
| Created: | July 21, 2006 |
Updated: | July 30, 2008 |
| Description: |
Jean-David Maillefer discovered a format string bug in the
date_format() function's error reporting. By calling the function with
invalid arguments, an authenticated user could exploit this to crash
the server. |
| Alerts: |
|
Comments (none posted)
MySQL: privilege violations
| Package(s): | mysql |
CVE #(s): | CVE-2006-4031
CVE-2006-4226
|
| Created: | August 25, 2006 |
Updated: | July 30, 2008 |
| Description: |
MySQL 4.1 before 4.1.21 and 5.0 before 5.0.24 allows a local user to access
a table through a previously created MERGE table, even after the user's
privileges are revoked for the original table, which might violate intended
security policy (CVE-2006-4031).
MySQL 4.1 before 4.1.21, 5.0 before 5.0.25, and 5.1 before 5.1.12, when run
on case-sensitive filesystems, allows remote authenticated users to create
or access a database when the database name differs only in case from a
database for which they have permissions (CVE-2006-4226). |
| Alerts: |
|
Comments (none posted)
MySQL: logging bypass
| Package(s): | mysql |
CVE #(s): | CVE-2006-0903
|
| Created: | April 4, 2006 |
Updated: | May 21, 2008 |
| Description: |
MySQL 5.0.18 and earlier allows local users to bypass logging mechanisms
via SQL queries that contain the NULL character, which are not properly
handled by the mysql_real_query function. NOTE: this issue was originally
reported for the mysql_query function, but the vendor states that since
mysql_query expects a null character, this is not an issue for mysql_query. |
| Alerts: |
|
Comments (2 posted)
nbd: arbitrary code execution
| Package(s): | nbd |
CVE #(s): | CVE-2005-3534
|
| Created: | January 6, 2006 |
Updated: | March 7, 2011 |
| Description: |
Kurt Fitzner discovered that the NBD (network block device) server did not
correctly verify the maximum size of request packets. By sending specially
crafted large request packets, a remote attacker who is allowed to access
the server could exploit this to execute arbitrary code with root
privileges. |
| Alerts: |
|
Comments (none posted)
ncompress: buffer underflow
| Package(s): | ncompress |
CVE #(s): | CVE-2006-1168
|
| Created: | August 10, 2006 |
Updated: | February 21, 2012 |
| Description: |
The ncompress compression utility has a missing boundary check.
A local user can use a maliciously created file to cause a
a .bss buffer underflow. |
| Alerts: |
|
Comments (none posted)
openldap: security bypass
| Package(s): | openldap |
CVE #(s): | CVE-2006-4600
|
| Created: | September 29, 2006 |
Updated: | June 12, 2007 |
| Description: |
slapd in OpenLDAP before 2.3.25 allows remote authenticated users with
selfwrite Access Control List (ACL) privileges to modify arbitrary
Distinguished Names (DN). |
| Alerts: |
|
Comments (none posted)
openoffice.org: several vulnerabilities
| Package(s): | openoffice.org |
CVE #(s): | CVE-2006-2198
CVE-2006-2199
CVE-2006-3117
|
| Created: | June 30, 2006 |
Updated: | January 4, 2007 |
| Description: |
Several vulnerabilities have been discovered in OpenOffice.org, a free
office suite.
- It turned out to be possible to embed arbitrary BASIC macros in
documents in a way that OpenOffice.org does not see them but executes them
anyway without any user interaction. (CVE-2006-2198)
- It is possible to evade the Java sandbox with specially crafted Java
applets. (CVE-2006-2199)
- Loading malformed XML documents can cause buffer overflows and cause a
denial of service or execute arbitrary code. (CVE-2006-3117)
|
| Alerts: |
|
Comments (none posted)
OpenSSH: denial of service
| Package(s): | openssh |
CVE #(s): | CVE-2006-4925
CVE-2006-5052
|
| Created: | October 6, 2006 |
Updated: | November 15, 2007 |
| Description: |
packet.c in ssh in OpenSSH allows remote attackers to cause a denial of
service (crash) by sending an invalid protocol sequence with
USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.
An unspecified vulnerability in portable OpenSSH before 4.4, when running
on some platforms, allows remote attackers to determine the validity of
usernames via unknown vectors involving a GSSAPI "authentication abort." |
| Alerts: |
|
Comments (none posted)
openssh: privilege separation issue
| Package(s): | openssh |
CVE #(s): | CVE-2006-5794
|
| Created: | November 8, 2006 |
Updated: | April 5, 2007 |
| Description: |
From the OpenSSH 4.5 announcement: "Fix a bug in the sshd privilege separation monitor that weakened its
verification of successful authentication. This bug is not known to
be exploitable in the absence of additional vulnerabilities." |
| Alerts: |
|
Comments (none posted)
openssh: remote denial of service
| Package(s): | openssh |
CVE #(s): | CVE-2006-4924
CVE-2006-5051
|
| Created: | September 27, 2006 |
Updated: | September 17, 2008 |
| Description: |
Openssh 4.4 fixes some
security issues, including a pre-authentication denial of service, an
unsafe signal hander and on portable OpenSSH a GSSAPI authentication abort
could be used to determine the validity of usernames on some platforms. |
| Alerts: |
|
Comments (none posted)
php: several vulnerabilities
| Package(s): | php |
CVE #(s): | CVE-2006-4481
CVE-2006-4484
CVE-2006-4485
|
| Created: | September 8, 2006 |
Updated: | June 13, 2008 |
| Description: |
The file_exists and imap_reopen functions in PHP before 5.1.5 do not check
for the safe_mode and open_basedir settings, which allows local users to
bypass the settings (CVE-2006-4481).
A buffer overflow in the LWZReadByte function in ext/gd/libgd/gd_gif_in.c
in the GD extension in PHP before 5.1.5 allows remote attackers to have an
unknown impact via a GIF file with input_code_size greater than
MAX_LWZ_BITS, which triggers an overflow when initializing the table array
(CVE-2006-4484).
The stripos function in PHP before 5.1.5 has unknown impact and attack
vectors related to an out-of-bounds read (CVE-2006-4485). |
| Alerts: |
|
Comments (1 posted)
php: buffer overflows
| Package(s): | php |
CVE #(s): | CVE-2006-5465
|
| Created: | November 3, 2006 |
Updated: | January 18, 2010 |
| Description: |
The Hardened-PHP Project discovered buffer overflows in
htmlentities/htmlspecialchars internal routines to the PHP Project. Of
course the whole purpose of these functions is to be filled with user
input. (The overflow can only be when UTF-8 is used) |
| Alerts: |
|
Comments (none posted)
phpbb2: missing input sanitizing
| Package(s): | phpbb2 |
CVE #(s): | CVE-2006-1896
|
| Created: | May 22, 2006 |
Updated: | February 11, 2008 |
| Description: |
It was discovered that phpbb2, a web based bulletin board, insufficiently
sanitizes values passed to the "Font Color 3" setting, which might lead to
the execution of injected code by admin users. |
| Alerts: |
|
Comments (none posted)
phpbb2: multiple vulnerabilities
| Package(s): | phpbb2 |
CVE #(s): | CVE-2005-3310
CVE-2005-3415
CVE-2005-3416
CVE-2005-3417
CVE-2005-3418
CVE-2005-3419
CVE-2005-3420
CVE-2005-3536
CVE-2005-3537
|
| Created: | December 22, 2005 |
Updated: | February 11, 2008 |
| Description: |
The phpbb2 web forum has a number of vulnerabilities including:
a web script injection problem, a protection mechanism bypass, a
security check bypass, a remote global variable bypass, cross site
scripting vulnerabilities, an SQL injection vulnerability,
a remote regular expression modification problem, missing input
sanitizing, and a missing request validation problem. |
| Alerts: |
|
Comments (none posted)
postgresql: SQL injection
| Package(s): | postgresql |
CVE #(s): | CVE-2006-2313
CVE-2006-2314
|
| Created: | May 24, 2006 |
Updated: | June 6, 2007 |
| Description: |
The PostgreSQL team has put out a set of "urgent updates" (in the form of the 7.3.15, 7.4.13, 8.0.8, and 8.1.4 releases) closing a
newly-discovered set of SQL injection issues. Details about the problem
can be found on the
technical information page; in short: multi-byte encodings can be used
to defeat normal string sanitizing techniques. The update fixes one problem
related to invalid multi-byte characters, but punts on another by simply
disallowing the old, unsafe technique of escaping single quotes with a
backslash. |
| Alerts: |
|
Comments (1 posted)
proftpd: denial of service
| Package(s): | proftpd |
CVE #(s): | CVE-2006-5815
|
| Created: | November 17, 2006 |
Updated: | January 24, 2007 |
| Description: |
A denial of service (DoS) vulnerability exists in the FTP server ProFTPD, up
to and including version 1.3.0. The flaw is due to both a potential bus
error and a definitive buffer overflow in the code which determines the FTP
command buffer size limit. The vulnerability can be exploited only if the
"CommandBufferSize" directive is explicitly used in the server
configuration. |
| Alerts: |
|
Comments (none posted)
proftpd: stack-based buffer overflow
| Package(s): | proftpd |
CVE #(s): | CVE-2006-6563
|
| Created: | December 18, 2006 |
Updated: | February 14, 2007 |
| Description: |
A vulnerability exists in the FTP server ProFTPD, versions up to and
including 1.3.0a. The vulnerability is caused by a stack-based buffer
overflow in the "pr_ctrls_recv_request" function of the "Controls"
feature. This is an optional feature of ProFTPD server which is by default
disabled in OpenPKG and probably other distributions. |
| Alerts: |
|
Comments (1 posted)
quake: buffer overflow
| Package(s): | quake3-bin |
CVE #(s): | CVE-2006-2236
|
| Created: | May 10, 2006 |
Updated: | January 12, 2009 |
| Description: |
Games based on the Quake 3 engine are vulnerable to a buffer overflow exploitable by a hostile game server. |
| Alerts: |
|
Comments (none posted)
rpm: arbitrary code execution
| Package(s): | rpm |
CVE #(s): | CVE-2006-5466
|
| Created: | November 6, 2006 |
Updated: | August 28, 2007 |
| Description: |
An error was found in the RPM library's handling of query reports. In
some locales, certain RPM packages would cause the library to crash. If
a user was tricked into querying a specially crafted RPM package, the
flaw could be exploited to execute arbitrary code with the user's
privileges. |
| Alerts: |
|
Comments (none posted)
shadow-utils: mailbox creation vulnerability
| Package(s): | shadow-utils |
CVE #(s): | CVE-2006-1174
|
| Created: | May 25, 2006 |
Updated: | June 12, 2007 |
| Description: |
The useradd tool from the shadow-utils package has a potential security
problem. When a new user's mailbox is created, the permissions are
set to random garbage from the stack, potentially allowing the
file to be read or written during the time before fchmod() is called. |
| Alerts: |
|
Comments (none posted)
squirrelmail: multiple cross-site scripting vulnerabilities
| Package(s): | squirrelmail |
CVE #(s): | CVE-2006-6142
|
| Created: | December 11, 2006 |
Updated: | January 31, 2007 |
| Description: |
Multiple cross-site scripting (XSS) vulnerabilities in SquirrelMail 1.4.0
through 1.4.9 allow remote attackers to inject arbitrary web script or HTML
via the mailto parameter in webmail.php, the session and delete_draft
parameters in compose.php, and unspecified vectors involving "a shortcoming
in the magicHTML filter." |
| Alerts: |
|
Comments (none posted)
unzip: long file name buffer overflow
| Package(s): | unzip |
CVE #(s): | CVE-2005-4667
|
| Created: | February 6, 2006 |
Updated: | May 2, 2007 |
| Description: |
A buffer overflow in UnZip 5.50 and earlier allows local users to execute
arbitrary code via a long filename command line argument. NOTE: since the
overflow occurs in a non-setuid program, there are not many scenarios under
which it poses a vulnerability, unless unzip is passed long arguments when
it is invoked from other programs. |
| Alerts: |
|
Comments (1 posted)
virusscan: DT_RPATH vulnerability
| Package(s): | virusscan |
CVE #(s): | CVE-2006-6474
|
| Created: | December 14, 2006 |
Updated: | January 3, 2007 |
| Description: |
McAfee VirusScan for Linux has an insecure DT_RPATH vulnerability
that may allow a remote attacker to execute arbitrary code. |
| Alerts: |
|
Comments (none posted)
w3c-libwww: possible stack overflow
| Package(s): | w3c-libwww |
CVE #(s): | CVE-2005-3183
|
| Created: | October 14, 2005 |
Updated: | May 2, 2007 |
| Description: |
xtensive testing of libwww's handling of multipart/byteranges content from
HTTP/1.1 servers revealed multiple logical flaws and bugs in
Library/src/HTBound.c |
| Alerts: |
|
Comments (1 posted)
xine-lib: buffer overflow
| Package(s): | xine-lib |
CVE #(s): | CVE-2006-6172
|
| Created: | December 5, 2006 |
Updated: | June 5, 2007 |
| Description: |
A buffer overflow was discovered in the Real Media input plugin in
xine-lib. If a user were tricked into loading a specially crafted stream
from a malicious server, the attacker could execute arbitrary code with the
user's privileges. |
| Alerts: |
|
Comments (none posted)
xine-lib: buffer overflow
| Package(s): | xine-lib |
CVE #(s): | CVE-2006-1664
|
| Created: | April 27, 2006 |
Updated: | February 27, 2008 |
| Description: |
xine-lib does an improper input data boundary check on
MPEG streams. A specially crafted MPEG file can be
created that can cause arbitrary code execution when the
file is accessed. |
| Alerts: |
|
Comments (none posted)
xine-ui: format string vulnerabilities
| Package(s): | xine-ui |
CVE #(s): | CVE-2006-2230
|
| Created: | June 9, 2006 |
Updated: | January 24, 2007 |
| Description: |
Several format string vulnerabilities have been discovered in xine-ui,
the user interface of the xine video player, which may cause a denial
of service. |
| Alerts: |
|
Comments (none posted)
xinit: race condition
| Package(s): | xinit |
CVE #(s): | CVE-2006-5214
|
| Created: | October 17, 2006 |
Updated: | August 9, 2007 |
| Description: |
A race condition allows local users to see error messages generated during
another user's X session. This could allow potentially sensitive
information to be leaked. |
| Alerts: |
|
Comments (1 posted)
X.org: local privilege escalations
| Package(s): | xorg-x11 |
CVE #(s): | CVE-2006-4447
|
| Created: | August 28, 2006 |
Updated: | April 30, 2007 |
| Description: |
Several X.org libraries and X.org itself contain system calls to
set*uid() functions, without checking their result. Local users could
deliberately exceed their assigned resource limits and elevate their
privileges after an unsuccessful set*uid() system call. This requires
resource limits to be enabled on the machine. |
| Alerts: |
|
Comments (none posted)
X.Org: buffer overflow
| Package(s): | xorg-x11-server xorg-x11 |
CVE #(s): | CVE-2006-1526
|
| Created: | May 3, 2006 |
Updated: | January 10, 2007 |
| Description: |
There is a buffer overflow in the Xrender extension of the X.Org server; any process which is able to connect to the server may be able to exploit this overflow to run arbitrary code. Since the X server runs as root on most systems, this vulnerability could be exploited to gain root access. See the X.Org advisory for more information. |
| Alerts: |
|
Comments (none posted)
xpdf: buffer overflow
| Package(s): | xpdf |
CVE #(s): | CAN-2005-0064
|
| Created: | January 19, 2005 |
Updated: | March 15, 2007 |
| Description: |
iDEFENSE has found yet another xpdf buffer overflow; see this advisory for details. |
| Alerts: |
|
Comments (1 posted)
Page editor: Jonathan Corbet
Next page: Kernel development>>
|
|
|