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Security
April 12, 2006
This article was contributed by Jake Edge.
Two weeks ago, this page examined
SQL injection attacks on web applications. Another well-known attack
is cross-site scripting, often abbreviated as "XSS." Cross-site scripting
is, perhaps, a more subtle way of breaking web applications, but its
effects can be just as damaging as SQL Injection.
The basic vector for XSS is user input into a website that is not
filtered to remove dangerous content. One of the more obvious ways this
can occur is with sites that allow users to add comments to stories,
without removing or altering HTML tags that they enter.
For example, if one adds a comment that contains:
<script>alert("howdy")</script>
and someone else, when looking at that comment, gets the alert,
the site is vulnerable to XSS. Obviously, a javascript popup is not
particularly dangerous and would be a clear sign that something odd is
going on. This kind of 'attack' is only used as a proof of concept.
The key thing to note
is that one user can run javascript in the context of another user's
browser, with all of the information and privileges of the targeted user
(or, at least, the subset granted to javascript).
There are other mechanisms to inject this kind of malicious content, either
as HTML links or by causing error messages that display the content.
Essentially any
place that a web application displays user input can be exploited if the
input or output is not filtered correctly. When XSS attacks appear in links,
they are often encoded in hex using the '%xx' or '&#xx;' so that it is not
immediately apparent that the link contains malicious content.
A wide variety of actions can be triggered by an XSS exploit, including
cookie theft, account hijacking, and denial of service. A clever attacker
could make a page that looks exactly like the login page of a popular website
(Google for example) and an unwary user could be fooled into
entering their username and password into this page after following a link.
By exploiting an XSS hole recently
reported
and discussed
on the Bugtraq mailing list, the link would not obviously be malicious and
could start with http://www.google.com.
Another common attack is to hijack a session by using an XSS exploit to
capture a cookie value that
stores a session ID. An
attacker can then use that session ID to take over a currently logged-in
session at the web site and for all intents and purposes, become that
user. This attack is especially nasty if that user happens to be an administrative
user - or is logged into, say, a financial site.
Avoiding XSS in a web application requires diligence in filtering user input
(a common theme in nearly all web application vulnerabilities). Any user
input that is sent back to browser for any reason needs to have certain
characters converted to strings that will display properly, but not be
interpreted as HTML by the browser. An XSS
FAQ
recommends replacing the following characters: < > ( ) & and #
with <, >, (, etc.
XSS vulnerabilities are one of the most commonly reported security issues
with web applications today. New XSS techniques are discovered regularly
that find new ways to evade various security measures implemented by
the browser scripting languages and new ways to fool users into falling
into an XSS trap.
Any technique that allows attackers to run code
in your browser with your permissions is obviously cause for worry. Website
users can only take some fairly drastic measures to avoid XSS (turning off
javascript, not following links, etc.). This is clearly something that
website owners must handle to protect their users.
Comments (9 posted)
Brief items
Users of the ClamAV free anti-virus system should be aware of the
recent vulnerabilities
in that package. No need to fear, however:
SonicWALL has announced that its (proprietary) anti-virus system is now equipped to shield your network from attempts to exploit one of those vulnerabilities. So ClamAV users need not actually apply the update - just layer another anti-virus package on top of it instead.
Comments (35 posted)
New vulnerabilities
clamav: multiple vulnerabilities
| Package(s): | clamav |
CVE #(s): | CVE-2006-1614
CVE-2006-1615
CVE-2006-1630
|
| Created: | April 6, 2006 |
Updated: | April 12, 2006 |
| Description: |
The ClamAV anti-virus toolkit has three vulnerabilities.
the PE header parser has an integer overflow problem,
the logging code has format string vulnerabilities that may lead
to the execution of arbitrary code, and
the cli_bitset_set() function can be used to create a denial
of service. |
| Alerts: |
|
Comments (1 posted)
doomsday: format string vulnerability
| Package(s): | doomsday |
CVE #(s): | CVE-2006-1618
|
| Created: | April 6, 2006 |
Updated: | April 12, 2006 |
| Description: |
The doomsday gaming engine has a format string vulnerability
that may be utilized by a remote attacker for
the execution of arbitrary code. |
| Alerts: |
|
Comments (none posted)
libimager-perl: denial of service
| Package(s): | libimager-perl |
CVE #(s): | CVE-2006-0053
|
| Created: | April 10, 2006 |
Updated: | April 12, 2006 |
| Description: |
The libimager-perl Perl extension has a vulnerability
in which maliciously created 4-channel JPEG images
can cause a segmentation fault and cause a denial of service.
|
| Alerts: |
|
Comments (none posted)
mplayer: integer overflows
| Package(s): | mplayer |
CVE #(s): | CVE-2006-1502
|
| Created: | April 10, 2006 |
Updated: | May 1, 2006 |
| Description: |
MPlayer 1.0pre7try2 has multiple integer overflow vulnerabilities.
Remote attackers can maliciously craft an ASF file or an AVI file
in order to cause a denial of service. |
| Alerts: |
|
Comments (none posted)
openvpn: arbitrary code execution
| Package(s): | openvpn |
CVE #(s): | CVE-2006-1629
|
| Created: | April 11, 2006 |
Updated: | April 27, 2006 |
| Description: |
OpenVPN 2.0 through 2.0.5 allows remote malicious servers to execute
arbitrary code on the client by using setenv with the LD_PRELOAD
environment variable. |
| Alerts: |
|
Comments (none posted)
plone: unauthorized access
| Package(s): | plone |
CVE #(s): | CVE-2006-1711
|
| Created: | April 12, 2006 |
Updated: | April 12, 2006 |
| Description: |
From the Debian advisory: "It was discovered that the Plone content management system lacks security
declarations for three internal classes. This allows manipulation of user
portraits by unprivileged users." |
| Alerts: |
|
Comments (none posted)
xscreensaver: possible password exposure
| Package(s): | xscreensaver |
CVE #(s): | CVE-2004-2655
|
| Created: | April 11, 2006 |
Updated: | May 24, 2006 |
| Description: |
In some cases, xscreensaver did not properly grab the keyboard when
reading the password for unlocking the screen, so that the password
was typed into the currently active application window. The only known
vulnerable case was when xscreensaver activated while an rdesktop session
was currently active. |
| Alerts: |
|
Comments (none posted)
Updated vulnerabilities
ADOdb: PostgresSQL command injection
| Package(s): | adodb |
CVE #(s): | CVE-2006-0410
|
| Created: | February 6, 2006 |
Updated: | April 17, 2006 |
| Description: |
Andy Staudacher discovered that ADOdb does not properly sanitize all
parameters. By sending specifically crafted requests to an application
that uses ADOdb and a PostgreSQL backend, an attacker might exploit the
flaw to execute arbitrary SQL queries on the host. |
| Alerts: |
|
Comments (none posted)
apache: cross-site scripting
| Package(s): | apache |
CVE #(s): | CVE-2005-3352
|
| Created: | December 14, 2005 |
Updated: | May 10, 2006 |
| Description: |
Versions 1 and 2 of the apache web server suffer from a cross-site scripting vulnerability in the mod_imap module; see this bugzilla entry for details. |
| Alerts: |
|
Comments (none posted)
blender: integer overflow
| Package(s): | blender |
CVE #(s): | CVE-2005-4470
|
| Created: | January 6, 2006 |
Updated: | June 15, 2006 |
| Description: |
Damian Put discovered that Blender did not properly validate a 'length'
value in .blend files. Negative values led to an insufficiently sized
memory allocation. By tricking a user into opening a specially crafted
.blend file, this could be exploited to execute arbitrary code with the
privileges of the Blender user. |
| Alerts: |
|
Comments (none 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)
ktools: buffer overflow
| Package(s): | centericq |
CVE #(s): | CVE-2005-3863
|
| Created: | December 7, 2005 |
Updated: | August 29, 2006 |
| Description: |
From the Debian-Testing alert: Mehdi Oudad "deepfear" and Kevin Fernandez "Siegfried" from the Zone-H
Research Team discovered a buffer overflow in kkstrtext.h of the ktools
library, which is included in (at least) centericq and motor. |
| Alerts: |
|
Comments (none 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)
crossfire: arbitrary code execution
| Package(s): | crossfire |
CVE #(s): | CVE-2006-1010
|
| Created: | March 14, 2006 |
Updated: | April 24, 2006 |
| Description: |
It was discovered that Crossfire, a multiplayer adventure game, performs
insufficient bounds checking on network packets when run in "oldsocketmode",
which may possibly lead to the execution of arbitrary code. |
| Alerts: |
|
Comments (none posted)
curl: heap-based buffer overflow
| Package(s): | curl |
CVE #(s): | CVE-2006-1061
|
| Created: | March 21, 2006 |
Updated: | June 28, 2006 |
| Description: |
Heap-based buffer overflow in cURL and libcURL 7.15.0 through 7.15.2 allows
remote attackers to execute arbitrary commands via a TFTP URL (tftp://)
with a valid hostname and a long path. |
| Alerts: |
|
Comments (none posted)
cyrus-imapd: buffer overflows
| Package(s): | cyrus-imapd |
CVE #(s): | CAN-2005-0546
|
| Created: | February 23, 2005 |
Updated: | April 10, 2006 |
| Description: |
Cyrus-imapd, prior to version 2.2.12, contains several buffer overflows which could be exploited by an (authenticated) attacker to run code on the server system. |
| Alerts: |
|
Comments (none posted)
dia: missing input sanitizing
| Package(s): | dia |
CVE #(s): | CAN-2005-2966
|
| Created: | October 4, 2005 |
Updated: | April 6, 2006 |
| Description: |
Joxean Koret discovered that the SVG import plugin did not properly
sanitize data read from an SVG file. By tricking an user into opening
a specially crafted SVG file, an attacker could exploit this to
execute arbitrary code with the privileges of the user. |
| Alerts: |
|
Comments (none posted)
dia: buffer overflows
| Package(s): | dia |
CVE #(s): | CVE-2006-1550
|
| Created: | April 3, 2006 |
Updated: | May 3, 2006 |
| Description: |
Three buffer overflows were discovered in the Xfig file format importer.
By tricking a user into opening a specially crafted .fig file with dia, an
attacker could exploit this to execute arbitrary code with the user's
privileges. |
| Alerts: |
|
Comments (none posted)
emacs21: format string vulnerability in "movemail"
| Package(s): | emacs21 |
CVE #(s): | CAN-2005-0100
|
| Created: | February 7, 2005 |
Updated: | May 15, 2006 |
| Description: |
Max Vozeler discovered a format string vulnerability in the "movemail"
utility of Emacs. By sending specially crafted packets, a malicious
POP3 server could cause a buffer overflow, which could be exploited to
execute arbitrary code with the privileges of the user and the "mail"
group. |
| Alerts: |
|
Comments (none posted)
enscript: arbitrary code execution
| Package(s): | enscript |
CVE #(s): | CAN-2004-1184
CAN-2004-1185
CAN-2004-1186
|
| Created: | January 21, 2005 |
Updated: | May 27, 2006 |
| Description: |
Erik Sjölund has discovered several security relevant problems in enscript,
a program to convert ASCII text into Postscript and other formats.
Unsanitized input can cause the execution of arbitrary commands via EPSF
pipe support. Due to missing sanitizing of filenames it is possible that a
specially crafted filename can cause arbitrary commands to be executed.
Multiple buffer overflows can cause the program to crash. |
| Alerts: |
|
Comments (none posted)
fetchmail: multidrop bug
| Package(s): | fetchmail |
CVE #(s): | CVE-2005-4348
|
| Created: | December 20, 2005 |
Updated: | May 27, 2006 |
| Description: |
Fetchmail contains a bug which allows a malicious mail server to crash the
client by sending a message without headers. This occurs when running in
multidrop mode. |
| Alerts: |
|
Comments (none posted)
Foomatic: Arbitrary command execution in foomatic-rip
| Package(s): | foomatic |
CVE #(s): | CAN-2004-0801
|
| Created: | September 20, 2004 |
Updated: | May 31, 2006 |
| Description: |
There is a vulnerability in the foomatic-filters package. This
vulnerability is due to insufficient checking of command-line parameters
and environment variables in the foomatic-rip filter. This vulnerability
may allow both local and remote attackers to execute arbitrary commands on
the print server with the permissions of the spooler. |
| Alerts: |
|
Comments (none posted)
freeradius: authentication bypass
| Package(s): | freeradius |
CVE #(s): | CVE-2006-1354
|
| Created: | March 24, 2006 |
Updated: | June 5, 2006 |
| Description: |
An unspecified vulnerability in FreeRADIUS 1.0.0 up to 1.1.0 allows remote
attackers to bypass authentication or cause a denial of service (server
crash) via "Insufficient input validation" in the EAP-MSCHAPv2 state
machine module. |
| Alerts: |
|
Comments (none posted)
gdb: multiple vulnerabilities
| Package(s): | gdb |
CVE #(s): | CAN-2005-1704
CAN-2005-1705
|
| Created: | May 20, 2005 |
Updated: | August 11, 2006 |
| Description: |
Tavis Ormandy of the Gentoo Linux Security Audit Team discovered an integer
overflow in the BFD library, resulting in a heap overflow. A review also
showed that by default, gdb insecurely sources initialization files from
the working directory. Successful exploitation would result in the
execution of arbitrary code on loading a specially crafted object file or
the execution of arbitrary commands. |
| Alerts: |
|
Comments (5 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: incorrect signature verification
| Package(s): | gnupg |
CVE #(s): | CVE-2006-0049
|
| Created: | March 13, 2006 |
Updated: | May 15, 2006 |
| Description: |
Another vulnerability has been found in
GnuPG. "Signature verification of non-detached signatures may give a
positive result but when extracting the signed data, this data may be
prepended or appended with extra data not covered by the signature. Thus
it is possible for an attacker to take any signed message and inject extra
arbitrary data." |
| Alerts: |
|
Comments (none 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)
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)
horde: two remotely exploitable vulnerabilities
| Package(s): | horde |
CVE #(s): | CVE-2006-1491
CVE-2006-1260
|
| Created: | April 5, 2006 |
Updated: | April 14, 2006 |
| Description: |
Versions of horde prior to 3.1.1 have two vulnerabilities, both of which are remotely exploitable: code execution in the help viewer and an input validation error which could allow read access to arbitrary files. |
| Alerts: |
|
Comments (none posted)
imap: buffer overflow in c-client
| Package(s): | imap |
CVE #(s): | CAN-2003-0297
|
| Created: | February 18, 2005 |
Updated: | April 10, 2006 |
| Description: |
A buffer overflow flaw was found in the c-client IMAP client. An attacker
could create a malicious IMAP server that if connected to by a victim could
execute arbitrary code on the client machine. |
| Alerts: |
|
Comments (none posted)
ipsec-tools: denial of service
| Package(s): | ipsec-tools |
CVE #(s): | CVE-2005-3732
|
| Created: | December 1, 2005 |
Updated: | June 8, 2006 |
| Description: |
ipsec-tools has a remote
denial of service vulnerability in the racoon daemon.
If racoon is running in aggressive mode, it fails to check all peer
payloads during
When the daemon the IKE negotiation phase, allowing a malicious peer
to crash the daemon. One should always be careful around aggressive racoons. |
| Alerts: |
|
Comments (none posted)
kaffeine: buffer overflow
| Package(s): | kaffeine |
CVE #(s): | CVE-2006-0051
|
| Created: | April 5, 2006 |
Updated: | April 6, 2006 |
| Description: |
Marcus Meissner discovered that kaffeine, a media player for
KDE 3, contains an unchecked buffer that can be overwritten remotely
when fetching remote RAM playlists which can cause the execution of
arbitrary code. |
| Alerts: |
|
Comments (none posted)
kdebase: local root vulnerability
| Package(s): | kdebase |
CVE #(s): | CAN-2005-2494
|
| Created: | September 7, 2005 |
Updated: | August 11, 2006 |
| Description: |
The kdebase package (and kcheckpass in particular) found in KDE versions 3.2.0 through 3.4.2 suffers from a lock file handling error which can enable a local attacker to obtain root access. See this advisory for details. |
| 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: multiple vulnerabilities
Comments (none posted)
kernel multiple vulnerabilities
| Package(s): | kernel |
CVE #(s): | CVE-2005-3527
CVE-2005-3783
CVE-2005-3784
CVE-2005-3805
CVE-2005-3806
CVE-2005-3808
|
| Created: | January 20, 2006 |
Updated: | April 18, 2006 |
| Description: |
Here's another set of vulnerabilities in the Linux kernel:
- A race condition in the 2.6 kernel could allow a local user to cause a
DoS by triggering a core dump in one thread while another thread has a
pending SIGSTOP (CVE-2005-3527).
- The ptrace functionality in 2.6 kernels prior to 2.6.14.2, using
CLONE_THREAD, does not use the thread group ID to check whether it is
attaching to itself, which could allow local users to cause a DoS
(CVE-2005-3783).
- The auto-reap child process in 2.6 kernels prior to 2.6.15 include
processes with ptrace attached, which leads to a dangling ptrace
reference and allows local users to cause a crash (CVE-2005-3784).
- A locking problem in the POSIX timer cleanup handling on exit on
kernels 2.6.10 to 2.6.14 when running on SMP systems, allows a local
user to cause a deadlock involving process CPU timers (CVE-2005-3805).
- The IPv6 flowlabel handling code in 2.4 and 2.6 kernels prior to
2.4.32 and 2.6.14 modifies the wrong variable in certain circumstances,
which allows local users to corrupt kernel memory or cause a crash by
triggering a free of non-allocated memory (CVE-2005-3806).
- An integer overflow in 2.6.14 and earlier could allow a local user to
cause a hang via 64-bit mmap calls that are not properly handled on a
32-bit system (CVE-2005-3808).
|
| Alerts: |
|
Comments (none posted)
libapreq2: algorithm weakness
| Package(s): | libapreq2-perl apache2 |
CVE #(s): | CVE-2006-0042
|
| Created: | March 14, 2006 |
Updated: | April 18, 2006 |
| Description: |
An algorithm weakness has been discovered in Apache2::Request, the
generic request library for Apache2 which can be exploited remotely
and cause a denial of service via CPU consumption. |
| Alerts: |
|
Comments (5 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: buffer overflows in PNG handling
| Package(s): | libgd2 |
CVE #(s): | CAN-2004-0990
CAN-2004-0941
|
| Created: | October 29, 2004 |
Updated: | June 28, 2006 |
| Description: |
Several buffer overflows have been discovered in libgd's PNG handling
functions.
If an attacker tricked a user into loading a malicious PNG image, they
could leverage this into executing arbitrary code in the context of
the user opening image. Most importantly, this library is commonly
used in PHP. One possible target would be a PHP driven photo website
that lets users upload images. Therefore this vulnerability might lead
to privilege escalation to a web server's privileges.
Multiple buffer overflows in the gd graphics library (libgd) 2.0.21 and
earlier may allow remote attackers to execute arbitrary code via malformed
image files that trigger the overflows due to improper calls to the
gdMalloc function. |
| Alerts: |
|
Comments (none posted)
libpam-ldap: authentication bypass
| Package(s): | libpam-ldap |
CVE #(s): | CAN-2005-2641
|
| Created: | August 25, 2005 |
Updated: | October 6, 2006 |
| Description: |
libpam-ldap, the PAM LDAP interface, has a vulnerability in which
it fails to authenticate with an LDAP server which is not configured
properly, allowing an authentication bypass. |
| 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)
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)
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)
mailman: denial of service
| Package(s): | mailman |
CVE #(s): | CVE-2006-0052
|
| Created: | March 30, 2006 |
Updated: | June 9, 2006 |
| Description: |
Mailman 2.1.5 and below have a denial of service vulnerability
in the Scrubber.py script. If a maliciously created message
with a mime multi part format is received, mailman delivery
can be stopped. |
| Alerts: |
|
Comments (none posted)
mod_python: remote access vulnerability
| Package(s): | mod_python |
CVE #(s): | CAN-2005-0088
|
| Created: | February 10, 2005 |
Updated: | April 10, 2006 |
| Description: |
mod_python has a vulnerability in the publisher handler that may allow
a remote user to use a specially crafted URL to allow access to
objects that should be protected. An information leak can result. |
| Alerts: |
|
Comments (none posted)
mozilla: multiple vulnerabilities
| Package(s): | mozilla |
CVE #(s): | CVE-2005-4134
CVE-2006-0292
CVE-2006-0296
|
| Created: | February 2, 2006 |
Updated: | May 4, 2006 |
| Description: |
Mozilla has three new vulnerabilities.
The Javascript interpreter has a problem with
dereferencing objects. A user can visit a specially crafted web page
which can crash the browser or cause it to execute arbitrary code.
The XULDocument.persist() function has a bug that can be triggered by
viewing specially crafted web sites, RDF data can be injected into the
localstore.rdf file, allowing arbitrary javascript code to be executed.
The Mozilla history saving mechanism is vulnerable to a denial of
service attack, visiting sites with extra-long titles can cause a
crash or very slow startup the next time the browser is run. |
| Alerts: |
|
Comments (none posted)
Mozilla Thunderbird: remote code execution and DoS
| Package(s): | mozilla-thunderbird |
CVE #(s): | CVE-2006-0884
|
| Created: | March 3, 2006 |
Updated: | May 4, 2006 |
| Description: |
The WYSIWYG rendering engine in Mozilla Thunderbird 1.0.7 and earlier
allows user-complicit attackers to bypass javascript security settings and
obtain sensitive information or cause a crash via an e-mail containing a
javascript URI in the SRC attribute of an IFRAME tag, which is executed
when the user edits the e-mail. |
| Alerts: |
|
Comments (1 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)
ncpfs: multiple vulnerabilities
| Package(s): | ncpfs |
CVE #(s): | CAN-2005-0013
CAN-2005-0014
|
| Created: | January 31, 2005 |
Updated: | May 15, 2006 |
| Description: |
Erik Sjolund discovered two vulnerabilities in the programs bundled
with ncpfs: there is a potentially exploitable buffer overflow in
ncplogin (CAN-2005-0014), and due to a flaw in nwclient.c, utilities
using the NetWare client functions insecurely access files with
elevated privileges (CAN-2005-0013). |
| Alerts: |
|
Comments (none posted)
ntp: uses wrong gid
| Package(s): | ntp |
CVE #(s): | CAN-2005-2496
|
| Created: | August 26, 2005 |
Updated: | August 11, 2006 |
| Description: |
When starting xntpd with the -u option and specifying the
group by using a string not a numeric gid the daemon uses
the gid of the user not the group. This problem is now fixed
by this update. |
| Alerts: |
|
Comments (none posted)
openmotif: buffer overflows
| Package(s): | openmotif |
CVE #(s): | CVE-2005-3964
|
| Created: | December 29, 2005 |
Updated: | July 27, 2006 |
| Description: |
The libUil component of the OpenMotif toolkit has a pair of buffer
overflow vulnerabilities that can possibly be used for the execution
of arbitrary code.
|
| Alerts: |
|
Comments (none posted)
OpenSSH: double shell expansion
| Package(s): | openssh |
CVE #(s): | CVE-2006-0225
|
| Created: | January 23, 2006 |
Updated: | July 20, 2006 |
| Description: |
OpenSSH has a double shell expansion vulnerability in local to local and
remote to remote copy with scp. |
| Alerts: |
|
Comments (none posted)
perl: setuid vulnerabilities
| Package(s): | perl |
CVE #(s): | CAN-2005-0155
CAN-2005-0156
|
| Created: | February 2, 2005 |
Updated: | August 11, 2006 |
| Description: |
There are two vulnerabilities with perl when it is used in a setuid mode. The PERLIO_DEBUG environment variable can be used to overwrite arbitrary files; there is also an associated buffer overflow which can be exploited to gain root access. |
| 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)
phpMyAdmin: multiple vulnerabilities
| Package(s): | phpmyadmin |
CVE #(s): | CVE-2005-4079
CVE-2005-3665
|
| Created: | December 12, 2005 |
Updated: | November 20, 2006 |
| Description: |
Stefan Esser reported multiple vulnerabilities
found in phpMyAdmin. The $GLOBALS variable allows modifying the global
variable import_blacklist to open phpMyAdmin to local and remote file
inclusion, depending on your PHP version (CVE-2005-4079, PMASA-2005-9).
Furthermore, it is also possible to conduct an XSS attack via the
$HTTP_HOST variable and a local and remote file inclusion because the
contents of the variable are under total control of the attacker
(CVE-2005-3665, PMASA-2005-8). |
| Alerts: |
|
Comments (none posted)
pound: HTTP Request Smuggling Attack
| Package(s): | pound |
CVE #(s): | CVE-2005-3751
|
| Created: | January 10, 2006 |
Updated: | June 8, 2006 |
| Description: |
HTTP requests with conflicting Content-Length and Transfer-Encoding headers
could lead to HTTP Request Smuggling Attack, which can be exploited to
bypass packet filters or poison web caches. |
| Alerts: |
|
Comments (none posted)
Py2Play: remote execution of arbitrary Python code
| Package(s): | Py2Play |
CVE #(s): | CAN-2005-2875
|
| Created: | September 19, 2005 |
Updated: | September 6, 2006 |
| Description: |
Py2Play uses Python pickles to send objects over a peer-to-peer game network, that clients accept without restriction the objects and code sent by peers. A remote attacker participating in a Py2Play-powered game can send
malicious Python pickles, resulting in the execution of arbitrary
Python code on the targeted game client. |
| Alerts: |
|
Comments (none posted)
scorched3d: multiple vulnerabilities
| Package(s): | scorched3d |
CVE #(s): | |
| Created: | November 15, 2005 |
Updated: | August 11, 2006 |
| Description: |
Luigi Auriemma discovered multiple flaws in the Scorched 3D game
server, including a format string vulnerability and several buffer
overflows. A remote attacker could exploit these vulnerabilities to crash
a game server or execute arbitrary code with the rights of the game server
user. |
| Alerts: |
|
Comments (none posted)
squirrelmail: multiple vulnerabilities
| Package(s): | squirrelmail |
CVE #(s): | CVE-2006-0188
CVE-2006-0195
CVE-2006-0377
|
| Created: | February 28, 2006 |
Updated: | June 8, 2006 |
| Description: |
Webmail.php in SquirrelMail 1.4.0 to 1.4.5 allows remote attackers to
inject arbitrary web pages into the right frame via a URL in the
right_frame parameter. NOTE: this has been called a cross-site scripting
(XSS) issue, but it is different than what is normally identified as
XSS. (CVE-2006-0188)
Interpretation conflict in the MagicHTML filter in SquirrelMail 1.4.0 to
1.4.5 allows remote attackers to conduct cross-site scripting (XSS) attacks
via style sheet specifiers with invalid (1) "/*" and "*/" comments, or (2)
a newline in a "url" specifier, which is processed by certain web browsers
including Internet Explorer. (CVE-2006-0195)
CRLF injection vulnerability in SquirrelMail 1.4.0 to 1.4.5 allows remote
attackers to inject arbitrary IMAP commands via newline characters in the
mailbox parameter of the sqimap_mailbox_select command, aka "IMAP
injection." (CVE-2006-0377) |
| Alerts: |
|
Comments (none posted)
sudo: vulnerability via scripts
| Package(s): | sudo |
CVE #(s): | CAN-2005-4158
CVE-2006-0151
|
| Created: | December 16, 2005 |
Updated: | September 1, 2006 |
| Description: |
Perl and Python scripts run via Sudo can be subverted. |
| Alerts: |
|
Comments (none posted)
tar: buffer overflow
| Package(s): | tar |
CVE #(s): | CVE-2006-0300
|
| Created: | February 22, 2006 |
Updated: | April 10, 2006 |
| Description: |
A buffer overflow (exploitable via a carefully-crafted archive file) has been discovered in GNU tar, versions 1.14 and above. |
| Alerts: |
|
Comments (none posted)
File overwrite vulnerability in tar and unzip
| Package(s): | tar unzip |
CVE #(s): | CAN-2001-1267
CAN-2001-1268
CAN-2001-1269
CAN-2002-0399
|
| Created: | October 1, 2002 |
Updated: | April 10, 2006 |
| Description: |
The tar utility does not properly filter file names containing
"../", meaning that a hostile archive can, if unpacked by an
unsuspecting user, overwrite any file that is writable by that user. GNU
tar versions 1.13.19 and earlier are vulnerable; unzip through version 5.42
has the same vulnerability. |
| Alerts: |
|
Comments (1 posted)
tcpdump: multiple DoS issues
| Package(s): | tcpdump |
CVE #(s): | CAN-2005-1280
CAN-2005-1279
CAN-2005-1278
|
| Created: | May 2, 2005 |
Updated: | April 10, 2006 |
| Description: |
The rsvp_print function in tcpdump 3.9.1 and earlier allows remote
attackers to cause a denial of service (infinite loop) via a crafted RSVP
packet of length 4. (CAN-2005-1280)
tcpdump 3.8.3 and earlier allows remote attackers to cause a denial of
service (infinite loop) via a crafted BGP packet, which is not properly
handled by RT_ROUTING_INFO, or LDP packet, which is not properly
handled by the ldp_print function. (CAN-2005-1279)
The isis_print function, as called by isoclns_print, in tcpdump 3.9.1 and
earlier allows remote attackers to cause a denial of service (infinite
loop) via a zero length, as demonstrated using a GRE packet.
(CAN-2005-1278) |
| Alerts: |
|
Comments (none posted)
tetex: integer overflows
Comments (none posted)
texinfo: temporary file vulnerability
| Package(s): | texinfo |
CVE #(s): | CAN-2005-3011
|
| Created: | October 5, 2005 |
Updated: | November 9, 2006 |
| Description: |
Texinfo prior to version 4.8-r1 suffers from a temporary file vulnerability. |
| Alerts: |
|
Comments (none posted)
tin: buffer overflow
| Package(s): | tin |
CVE #(s): | CVE-2006-0804
|
| Created: | February 19, 2006 |
Updated: | November 24, 2006 |
| Description: |
An allocation off-by-one bug exists in the TIN news reader version 1.8.0 and earlier
which can lead to a buffer overflow. |
| 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)
uw-imap: buffer overflow
| Package(s): | uw-imap |
CVE #(s): | CAN-2005-2933
|
| Created: | October 11, 2005 |
Updated: | April 10, 2006 |
| Description: |
"infamous41md" discovered a buffer overflow in uw-imap, the University
of Washington's IMAP Server that allows attackers 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)
webcalendar: multiple vulnerabilities
| Package(s): | webcalendar |
CVE #(s): | CVE-2005-3949
CVE-2005-3961
CVE-2005-3982
|
| Created: | March 15, 2006 |
Updated: | May 15, 2006 |
| Description: |
The PHP-based webcalendar package suffers from three vulnerabilities: a set of SQL injection problems (CVE-2005-3949), an input sanitizing failure allowing local files to be overwritten (CVE-2005-3961), and a response splitting vulnerability (CVE-2005-3982). |
| Alerts: |
|
Comments (none posted)
xine-lib: buffer overflows
| Package(s): | xine-lib |
CVE #(s): | CAN-2004-1379
|
| Created: | September 22, 2004 |
Updated: | April 10, 2006 |
| Description: |
xine-lib (through version 1_rc6) contains buffer overflows in the subtitle parsing and DVD sub-picture decoder code. |
| Alerts: |
|
Comments (none posted)
xine-ui - insecure temporary file creation
| Package(s): | xine-ui |
CVE #(s): | CAN-2004-0372
|
| Created: | April 6, 2004 |
Updated: | April 27, 2006 |
| Description: |
Shaun Colley discovered a problem in xine-ui, the xine video player
user interface. A script contained in the package to possibly remedy
a problem or report a bug does not create temporary files in a secure
fashion. This could allow a local attacker to overwrite files with
the privileges of the user invoking xine. |
| Alerts: |
|
Comments (none posted)
xloadimage: buffer overflows
| Package(s): | xloadimage |
CVE #(s): | CAN-2005-3178
|
| Created: | October 10, 2005 |
Updated: | May 15, 2006 |
| Description: |
Three buffer overflows were discovered in xloadimage when handling the image title name. A malicious user can construct a NIFF file that when viewed and processed (with either zoom, reduce or rotate) by xloadimage, will cause the program to overwrite the return address and execute arbitrary code. |
| 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)
xpdf: potential vulnerabilities
| Package(s): | xpdf gpdf |
CVE #(s): | CVE-2006-1244
|
| Created: | February 27, 2006 |
Updated: | April 13, 2006 |
| Description: |
Derek Noonburg has fixed several potential vulnerabilities in xpdf,
which are also present in gpdf, the Portable Document Format (PDF)
viewer with Gtk bindings. |
| Alerts: |
|
Comments (none posted)
xpdf: denial of service
| Package(s): | xpdf kpdf |
CVE #(s): | CAN-2005-2097
|
| Created: | August 9, 2005 |
Updated: | August 2, 2006 |
| Description: |
A flaw was discovered in Xpdf in that could allow an attacker to construct
a carefully crafted PDF file that would cause Xpdf to consume all available
disk space in /tmp when opened. |
| Alerts: |
|
Comments (none posted)
xpdf: integer overflows
| Package(s): | xpdf, poppler, cupsys, tetex-bin |
CVE #(s): | CVE-2005-3624
CVE-2005-3625
CVE-2005-3626
CVE-2005-3627
|
| Created: | January 5, 2006 |
Updated: | November 30, 2006 |
| Description: |
xpdf has a number of integer overflows.
A remote attacker can trick a user into opening a maliciously
crafted pdf file, allowing the attacker to execute code with the
privileges of the local user.
This also affects the Poppler library, cupsys and tetex-bin. |
| Alerts: |
|
Comments (none posted)
zlib: buffer overflow
| Package(s): | zlib |
CVE #(s): | CAN-2005-1849
|
| Created: | July 21, 2005 |
Updated: | April 11, 2006 |
| Description: |
zlib has a vulnerability that can cause code that executes it to crash
if a corrupted file is opened. |
| Alerts: |
|
Comments (none posted)
Resources
David A. Wheeler has posted the
slides from his "open standards and security" talk [PDF]. When
viewing, skip immediately to the middle, where you can find a second set of
slides with added commentary. " In contrast, open standards make
security possible. They enable continuous competition between suppliers, so
you can now choose the supplier who provides adequate security. Suppliers
now compete on security, so they will have to improve. The key is using
open standards appropriately to enable competition."
Comments (2 posted)
Page editor: Jonathan Corbet
Next page: Kernel development>>
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