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Security
Security news
When routers go bad
May 23, 2007
This article was contributed by Jake Edge.
Broadband routers are ubiquitous these days, so much so that they go
unnoticed; unless they fail, no one pays any attention to them. These
routers run some kind of embedded OS, often Linux, on a fairly capable
hardware platform which makes them interesting targets for an attacker.
Because they tend to be invisible and unmonitored, subverting routers without
affecting their normal function makes a perfect hidden space for malicious
code to run.
As a recent Bugtraq posting
from Gadi Evron points out, there have already been a few reports of
vulnerable routers and we can only expect to see more. Even if the
router manufacturers are staying on top of vulnerabilities in their
codebase, which is not a foregone conclusion, there are still serious
questions about how a largely non-technical user base will be
assisted or forced into upgrading their firmware. The logistics of
getting the right firmware and upgrade program into a user's hands and having
them run it correctly so that their router does not turn into a brick is
rather daunting. One can only imagine the volume of support calls that
could be generated.
In many cases, the router makers are selling special versions of their
hardware to specific broadband providers who sell or lease them to their
customers. This allows the router maker to leave the support burden
to the providers who typically already have a large technical support
organization. It is unclear whose responsibility it is to track security
issues and ensure that any critical vulnerabilities are patched, it probably
depends on the contract. The broadband providers typically host any updates
and manufacturer's websites refer users looking for updates there. It
certainly seems like a situation where vulnerabilities could fall through
the cracks.
As an example, Qwest provides a router for their DSL customers, made by
Actiontec, that is based on Linux 2.4.17 which was
released in December 2001.
Since that time, there have been numerous 2.4 kernel releases, with
the most recent, 2.4.34.4 having been
released in April. Many
of those releases have been done for security problems in various subsystems,
including one for
CAN-2005-0449
which could potentially lead to a denial of service from a bug in the
netfilter packet filtering code. It is unclear if the router is susceptible
to this particular problem, one hopes not, but there are plenty of other
candidates, in the other security bug fixes or any that come up
in the future.
Any outward (broadband) facing network service is, of course, a potential
vector for security issues. Many of these routers serve web pages for
configuration as well as allowing telnet or ssh
connections for maintenance. One hopes that these services can only be
configured to
run on the internal network. Even then, many of these routers provide
a wireless bridge in addition to ethernet on the LAN side and that may
expose those services more broadly.
Once a router has been subverted, it could be turned to any number of
malicious tasks; the simplest might be to add it to a botnet for spamming
or distributed denial of service. It does not take much in the way of
CPU horsepower or RAM to perform those kinds of tasks and they could easily
run on many routers without interfering in any noticeable way. An attack
focused on a particular individual could potentially intercept and report
on all of their internet traffic; there is no better place for spyware
on a network.
It is not only routers, of course, that are vulnerable, any embedded
device could be a target, but routers have the network connectivity
that makes them particularly interesting and accessible. Long before
we start putting wireless network connected Linux systems in
control of our cars,
the need for vigilance about security updates for embedded devices must
be ingrained into users. It needs to become as obvious to people as
the need for an anti-virus scanner on Windows has become.
Comments (10 posted)
New vulnerabilities
clamav: file descriptor leak
| Package(s): | clamav |
CVE #(s): | CVE-2007-2029
|
| Created: | May 21, 2007 |
Updated: | May 23, 2007 |
| Description: |
File descriptor leak in the PDF handler in Clam AntiVirus (ClamAV) allows
remote attackers to cause a denial of service via a crafted PDF file. |
| Alerts: |
|
Comments (none posted)
libpng: denial of service
| Package(s): | libpng |
CVE #(s): | CVE-2007-2445
|
| Created: | May 17, 2007 |
Updated: | July 22, 2008 |
| Description: |
Libpng can be crashed when processing malformed PNG files.
It may also be possible to exploit this vulnerability to execute arbitrary
code. |
| Alerts: |
|
Comments (none posted)
mod_security: remote rule bypass
| Package(s): | mod_security |
CVE #(s): | CVE-2007-1359
|
| Created: | May 17, 2007 |
Updated: | May 23, 2007 |
| Description: |
The Apache mod_security extension has a remote rule bypass vulnerability.
A remote attacker can exploit this by sending a specially crafted POST
request that bypasses the module ruleset. The attacker can potentially
use this to execute arbitrary code with the privileges of the web server. |
| Alerts: |
|
Comments (none posted)
mydns: buffer overflows
| Package(s): | mydns |
CVE #(s): | CVE-2007-2362
|
| Created: | May 23, 2007 |
Updated: | December 17, 2007 |
| Description: |
Multiple buffer overflows in MyDNS allow remote attackers to cause a denial of
service (daemon crash) and possibly execution of arbitrary code. |
| Alerts: |
|
Comments (none posted)
phpwiki: remote code execution
| Package(s): | phpwiki |
CVE #(s): | CVE-2007-2024
CVE-2007-2025
|
| Created: | May 17, 2007 |
Updated: | September 12, 2007 |
| Description: |
The phpwiki Upload page does not properly check the extension of a file.
This can be used by a remote attacker to upload a specially crafted PHP file
and execute arbitrary PHP code with the privileges of the PhpWiki user. |
| Alerts: |
|
Comments (none posted)
ratbox: denial of service
| Package(s): | ratbox |
CVE #(s): | |
| Created: | May 18, 2007 |
Updated: | May 23, 2007 |
| Description: |
A Denial of Service (DoS) vulnerability exists in the Ratbox IRC Daemon,
versions up to and including 2.2.5. Too many pending connections to the
server from a single unknown client could result in a resource starvation. |
| Alerts: |
|
Comments (none posted)
Updated vulnerabilities
aircrack-ng: remote execution of arbitrary code
| Package(s): | aircrack-ng |
CVE #(s): | CVE-2007-2057
|
| Created: | April 23, 2007 |
Updated: | May 23, 2007 |
| Description: |
Jonathan So reported that the airodump-ng module does not correctly
check the size of 802.11 authentication packets before copying them
into a buffer. A remote attacker could trigger a stack-based buffer
overflow by sending a specially crafted 802.11 authentication packet to a
user running airodump-ng with the -w (--write) option. This could lead to
the remote execution of arbitrary code with the permissions of the user
running airodump-ng, which is typically the root user. |
| Alerts: |
|
Comments (none posted)
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)
Asterisk: two SIP denial of service vulnerabilities
| Package(s): | Asterisk |
CVE #(s): | CVE-2007-1561
CVE-2007-1594
|
| Created: | April 3, 2007 |
Updated: | August 27, 2007 |
| Description: |
The Madynes research team at INRIA has discovered that Asterisk contains a
null pointer dereferencing error in the SIP channel when handling INVITE
messages. Furthermore qwerty1979 discovered that Asterisk 1.2.x fails to
properly handle SIP responses with return code 0. A remote attacker could
cause an Asterisk server listening for SIP messages to crash by sending a
specially crafted SIP message or answering with a 0 return code. |
| Alerts: |
|
Comments (none posted)
bind: denial of service
| Package(s): | bind |
CVE #(s): | CVE-2007-2241
|
| Created: | May 10, 2007 |
Updated: | June 8, 2007 |
| Description: |
ISC BIND 9.4.0 is vulnerable to a denial of service attack.
If recursion is enabled a remote attacker can use a special
sequence of queries to cause the daemon to exit. |
| Alerts: |
|
Comments (1 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)
cups: denial of service
| Package(s): | cups |
CVE #(s): | CVE-2007-0720
|
| Created: | March 26, 2007 |
Updated: | February 7, 2008 |
| Description: |
Previous versions of the cups package could be forced to hang via a client
"partially negotiating" an ssl connection. In this state, cups would not
allow other connections to be made, a denial of service. |
| Alerts: |
|
Comments (none 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)
dovecot: directory traversal
| Package(s): | dovecot |
CVE #(s): | CVE-2007-2231
|
| Created: | May 8, 2007 |
Updated: | May 21, 2008 |
| Description: |
Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot
before 1.0.rc29, when using the zlib plugin, allows remote attackers to
read arbitrary gzipped (.gz) mailboxes (mbox files) via a .. (dot dot)
sequence in the mailbox name. |
| Alerts: |
|
Comments (none posted)
elinks: code execution
| Package(s): | elinks |
CVE #(s): | CVE-2007-2027
|
| Created: | May 7, 2007 |
Updated: | June 7, 2007 |
| Description: |
Arnaud Giersch discovered that elinks incorrectly attempted to load
gettext catalogs from a relative path. If a user were tricked into
running elinks from a specific directory, a local attacker could execute
code with user privileges. |
| Alerts: |
|
Comments (none posted)
evolution: format string error
| Package(s): | evolution |
CVE #(s): | CVE-2007-1002
|
| Created: | March 27, 2007 |
Updated: | February 27, 2008 |
| Description: |
A format string error in the "write_html()" function in calendar/gui/
e-cal-component-memo-preview.c when displaying a memo's categories can
potentially be exploited to execute arbitrary code via a specially crafted
shared memo containing format specifiers. |
| Alerts: |
|
Comments (1 posted)
pop mail man-in-the-middle attacks
| Package(s): | evolution thunderbird mutt fetchmail |
CVE #(s): | CVE-2007-1558
|
| Created: | May 8, 2007 |
Updated: | August 7, 2007 |
| Description: |
The APOP protocol allows remote attackers to guess the first 3 characters
of a password via man-in-the-middle (MITM) attacks that use crafted message
IDs and MD5 collisions. NOTE: this design-level issue potentially affects
all products that use APOP, including (1) Thunderbird, (2) Evolution, (3)
mutt, and (4) fetchmail. |
| Alerts: |
|
Comments (none posted)
fail2ban: denial of service
| Package(s): | fail2ban |
CVE #(s): | CVE-2006-6302
|
| Created: | February 16, 2007 |
Updated: | July 30, 2007 |
| Description: |
fail2ban 0.7.4 and earlier does not properly parse sshd logs file, which
allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file
and cause a denial of service by adding arbitrary IP addresses to the sshd
log file, as demonstrated by logging in to ssh using a login name
containing certain strings with an IP address. |
| Alerts: |
|
Comments (3 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)
file: denial of service
| Package(s): | file |
CVE #(s): | CVE-2007-2026
|
| Created: | April 18, 2007 |
Updated: | May 25, 2007 |
| Description: |
The gnu regular expression code in file 4.20 allows context-dependent
attackers to cause a denial of service (CPU consumption) via a crafted
document with a large number of line feed characters, which is not well
handled by OS/2 REXX regular expressions that use wildcards, as originally
reported for AMaViS. |
| Alerts: |
|
Comments (none posted)
file: arbitrary code execution
| Package(s): | file |
CVE #(s): | CVE-2007-1536
|
| Created: | March 22, 2007 |
Updated: | May 30, 2007 |
| Description: |
The "file" utility incorrectly checks the allocated heap memory size.
If a remote attacker can trick a user into looking at specially crafted
files with file, arbitrary code can be executed with the user's privileges. |
| Alerts: |
|
Comments (1 posted)
firefox: FTP PASV port-scanning
| Package(s): | firefox seamonkey |
CVE #(s): | CVE-2007-1562
|
| Created: | March 23, 2007 |
Updated: | June 4, 2007 |
| Description: |
According to this
advisory, the FTP protocol includes the PASV (passive) command which is
used by Firefox to request an alternate data port. The specification of the
FTP protocol allows the server response to include an alternate server
address as well, although this is rarely used in practice. |
| Alerts: |
|
Comments (1 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: | October 10, 2007 |
| 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)
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)
gd: buffer overflow
| Package(s): | gd |
CVE #(s): | CVE-2007-0455
|
| Created: | February 7, 2007 |
Updated: | February 28, 2008 |
| Description: |
The gd graphics library contains a buffer overflow which could enable a remote attacker to execute arbitrary code. Note that various other packages include code from gd and could also be vulnerable. |
| Alerts: |
|
Comments (2 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)
gimp: arbitrary code execution
| Package(s): | gimp |
CVE #(s): | CVE-2007-2356
|
| Created: | May 1, 2007 |
Updated: | June 11, 2007 |
| Description: |
From this Secunia
advisory: "Marsu has discovered a vulnerability in Gimp, which
can be exploited by malicious people to compromise a user's system. The
vulnerability is caused due to an error within the "set_color_table()"
function in plug-ins/common/sunras.c. This can be exploited to cause a
stack-based buffer overflow by e.g. tricking a user into opening a
specially crafted .RAS file." |
| Alerts: |
|
Comments (3 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: | June 1, 2007 |
| 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)
horde-kronolith: local file inclusion
| Package(s): | horde-kronolith |
CVE #(s): | CVE-2006-6175
|
| Created: | January 17, 2007 |
Updated: | March 7, 2008 |
| Description: |
Kronolith contains a mistake in lib/FBView.php where a raw, unfiltered
string is used instead of a sanitized string to view local files. An
authenticated attacker could craft an HTTP GET request that uses directory
traversal techniques to execute any file on the web server as PHP code,
which could allow information disclosure or arbitrary code execution with
the rights of the user running the PHP application (usually the webserver
user). |
| Alerts: |
|
Comments (none posted)
ImageMagick: integer overflows
| Package(s): | imagemagick |
CVE #(s): | CVE-2007-1797
|
| Created: | April 4, 2007 |
Updated: | April 17, 2008 |
| Description: |
Multiple integer overflows in ImageMagick before 6.3.3-5 allow remote
attackers to execute arbitrary code via (1) a crafted DCM image, which
results in a heap-based overflow in the ReadDCMImage function, or (2) the
(a) colors or (b) comments field in a crafted XWD image, which results in a
heap-based overflow in the ReadXWDImage function, different issues than
CVE-2007-1667. |
| Alerts: |
|
Comments (none 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)
ipsec-tools: denial of service
| Package(s): | ipsec-tools |
CVE #(s): | CVE-2007-1841
|
| Created: | April 10, 2007 |
Updated: | August 28, 2007 |
| Description: |
A flaw was discovered in the IPSec key exchange server "racoon". Remote
attackers could send a specially crafted packet and disrupt established
IPSec tunnels, leading to a denial of service. |
| Alerts: |
|
Comments (none posted)
java: multiple vulnerabilities
| Package(s): | java |
CVE #(s): | CVE-2006-4339
CVE-2006-4790
CVE-2006-6731
CVE-2006-6736
CVE-2006-6737
CVE-2006-6745
|
| Created: | January 18, 2007 |
Updated: | June 8, 2007 |
| Description: |
java has multiple vulnerabilities, these include:
an RSA exponent padding attack vulnerability, two vulnerabilities
which allow untrusted applets to access data in other applets,
vulnerabilities that involve applets gaining privileges due to
serialization bugs in the JRE and buffer overflows in the java image
handling routines that can give attackers read/write/execute capabilities
for local files. |
| Alerts: |
|
Comments (1 posted)
kdelibs: cross-site scripting
| Package(s): | kdelibs konqeror |
CVE #(s): | CVE-2007-0537
|
| Created: | February 5, 2007 |
Updated: | August 13, 2007 |
| Description: |
Konqueror 3.5.5 does not properly parse HTML comments, which allows remote
attackers to conduct cross-site scripting (XSS) attacks and bypass some XSS
protection schemes by embedding certain HTML tags within a comment, a
related issue to CVE-2007-0478. |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2007-1357
|
| Created: | April 16, 2007 |
Updated: | November 14, 2007 |
| Description: |
The atalk_sum_skb function in AppleTalk for Linux kernel 2.6.x before
2.6.21, and possibly 2.4.x, allows remote attackers to cause a denial of
service (crash) via an AppleTalk frame that is shorter than the specified
length, which triggers a BUG_ON call when an attempt is made to perform a
checksum. |
| Alerts: |
|
Comments (none posted)
kernel: multiple vulnerabilities
| Package(s): | kernel |
CVE #(s): | CVE-2006-5749
CVE-2006-4814
CVE-2006-6106
|
| Created: | January 5, 2007 |
Updated: | May 7, 2008 |
| Description: |
A security issue has been reported in Linux kernel due to an error in
drivers/isdn/i4l/isdn_ppp.c as the "isdn_ppp_ccp_reset_alloc_state()"
function never initializes an event timer before scheduling it with the
"add_timer()" function.
The mincore function in the kernel does not properly lock access to user
space, which has unspecified impact and attack vectors, possibly related to
a deadlock.
Another vulnerability has been reported in Linux kernel caused by a
boundary error within the handling of incoming CAPI messages in
net/bluetooth/cmtp/capi.c. This can be exploited to overwrite certain
Kernel data structures. |
| Alerts: |
|
Comments (none 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: multiple vulnerabilities
| Package(s): | kernel |
CVE #(s): | CVE-2007-0005
CVE-2007-1000
|
| Created: | March 15, 2007 |
Updated: | November 14, 2007 |
| Description: |
The Linux kernel has a boundary error problem with the
Omnikey CardMan 4040 driver read and write functions. This can be used
to cause a buffer overflow and possible execution or arbitrary code with
kernel privileges.
The ipv6_getsockopt_sticky function in
net/ipv6/ipv6_sockglue.c is vulnerable to a NULL pointer dereference.
Local users can use this to crash the kernel or to disclose kernel
memory. |
| Alerts: |
|
Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-0007
CVE-2007-0006
|
| Created: | February 15, 2007 |
Updated: | November 14, 2007 |
| Description: |
Linux kernel versions from 2.6.9 to 2.6.20 have a denial of service
vulnerability. A remote attacker can cause the key_alloc_serial
function's key serial number collision avoidance code to have a
null dereference, resulting in a crash. |
| Alerts: |
|
Comments (1 posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-4535
CVE-2006-4538
|
| Created: | September 18, 2006 |
Updated: | December 3, 2007 |
| 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-2007-1861
CVE-2007-2242
|
| Created: | May 1, 2007 |
Updated: | February 8, 2008 |
| Description: |
The netlink protocol has an infinite recursion bug that allows users to
cause a kernel crash. Also the IPv6 protocol allows remote attackers to
cause a denial of service via crafted IPv6 type 0 route headers
(IPV6_RTHDR_TYPE_0) that create network amplification between two routers. |
| 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-2007-0772
|
| Created: | February 23, 2007 |
Updated: | November 14, 2007 |
| Description: |
The Linux kernel before 2.6.20.1 allows remote attackers to cause a denial
of service (oops) via a crafted NFSACL 2 ACCESS request that triggers a free
of an incorrect pointer. |
| 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")." |
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Comments (none posted)
kernel: denial of service
| Package(s): | kernel |
CVE #(s): | CVE-2006-2935
CVE-2006-4145
CVE-2006-3745
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| 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: |
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Comments (none posted)
krb5: multiple vulnerabilities
| Package(s): | krb5 |
CVE #(s): | CVE-2007-0956
CVE-2007-0957
CVE-2007-1216
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| Created: | April 3, 2007 |
Updated: | March 24, 2008 |
| Description: |
A flaw was found in the username handling of the MIT krb5 telnet daemon
(telnetd). A remote attacker who can access the telnet port of a target
machine could log in as root without requiring a password. MIT krb5 Security Advisory 2007-001
Buffer overflows were found which affect the Kerberos KDC and the kadmin
server daemon. A remote attacker who can access the KDC could exploit this
bug to run arbitrary code with the privileges of the KDC or kadmin server
processes. MIT krb5 Security Advisory
2007-002
A double-free flaw was found in the GSSAPI library used by the kadmin
server daemon. MIT krb5 Security Advisory
2007-003 |
| Alerts: |
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Comments (none posted)
ktorrent: incorrect validation
| Package(s): | ktorrent |
CVE #(s): | CVE-2007-1384
CVE-2007-1385
CVE-2007-1799
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| Created: | March 13, 2007 |
Updated: | October 24, 2007 |
| Description: |
Bryan Burns of Juniper Networks discovered that KTorrent did not
correctly validate the destination file paths nor the HAVE statements
sent by torrent peers. A malicious remote peer could send specially
crafted messages to overwrite files or execute arbitrary code with user
privileges. |
| Alerts: |
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Comments (1 posted)
libgadu: memory alignment bug
| Package(s): | libgadu |
CVE #(s): | CAN-2005-2370
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| 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.
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| Alerts: |
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Comments (none posted)
libgtop2: buffer overflow
| Package(s): | libgtop2 |
CVE #(s): | CVE-2007-0235
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| Created: | January 15, 2007 |
Updated: | August 9, 2007 |
| Description: |
The /proc parsing routines in libgtop are vulnerable to a buffer overflow.
If an attacker can run a process in a specially crafted long
path then trick a user into running gnome-system-monitor,
arbitrary code can be executed with the user's privileges. |
| Alerts: |
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Comments (none posted)
libmodplug: boundary errors
| Package(s): | libmodplug |
CVE #(s): | CVE-2006-4192
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| Created: | December 11, 2006 |
Updated: | September 28, 2007 |
| 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: |
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Comments (none posted)
libtiff: buffer overflow
| Package(s): | libtiff |
CVE #(s): | CVE-2006-2193
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| 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. |
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