Sebastian Krahmer discovered a Denial of Service vulnerability in the racoon daemon. By sending specially crafted ISAKMP packets, a remote attacker could trigger a buffer overflow which caused racoon to crash.

This update does not introduce any source code changes affecting the ipsec-tools package. It is necessary to update the version number of the package in order to support an update to the 'racoon' package.
Please note that racoon is not officially supported by Ubuntu (it is in the 'universe' component of the archive).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Jean-Yves Lefort discovered a buffer overflow in the gaim_markup_strip_html() function. This caused Gaim to crash when receiving certain malformed HTML messages. (CAN-2005-0965)

Jean-Yves Lefort also noticed that many functions that handle IRC commands do not escape received HTML metacharacters; this allowed remote attackers to cause a Denial of Service by injecting arbitrary HTML code into the conversation window, popping up arbitrarily many empty dialog boxes, or even causing Gaim to crash. (CAN-2005-0966).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Two Denial of Service vulnerabilities have been discovered in the getimagesize() function. getimagesize() uses format specific internal functions php_handle_iff() and php_handle_jpeg() which get stuck in infinite loops when certain (invalid) size parameters are read from the image. In web applications that allow users to upload arbitrary image files, a remote attacker could render the server unavailable by uploading specially crafted images.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Joey Hess discovered that 'unshar' created temporary files in an insecure manner. This could allow a symbolic link attack to create or overwrite arbitrary files with the privileges of the user invoking the program.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Mathieu Lafon discovered an information leak in the ext2 file system driver. When a new directory was created, the ext2 block written to disk was not initialized, so that previous memory contents (which could contain sensitive data like passwords) became visible on the raw device. This is particularly important if the target device is removable and thus can be read by users other than root.
(CAN-2005-0400)

Yichen Xie discovered a Denial of Service vulnerability in the ELF loader. A specially crafted ELF library or executable could cause an attempt to free an invalid pointer, which lead to a kernel crash.
(CAN-2005-0749)

Ilja van Sprundel discovered that the bluez_sock_create() function did not check its 'protocol' argument for negative values. A local attacker could exploit this to execute arbitrary code with root privileges by creating a Bluetooth socket with a specially crafted protocol number. (CAN-2005-0750)

Michal Zalewski discovered that the iso9660 file system driver fails to check ranges properly in several cases. Mounting a specially crafted CD-ROM may have caused a buffer overflow leading to a kernel crash or even arbitrary code execution. (CAN-2005-0815)

Previous kernels did not restrict the use of the N_MOUSE line discipline in the serial driver. This allowed an unprivileged user to inject mouse movement and/or keystrokes (using the sunkbd driver) into the input subsystem, taking over the console or an X session, where another user is logged in. (CAN-2005-0839)

A Denial of Service vulnerability was found in the tmpfs driver, which is commonly used to mount RAM disks below /dev/shm and /tmp. The shm_nopage() did not properly verify its address argument, which could be exploited by a local user to cause a kernel crash with invalid addresses.
(http://linux.bkbits.net:8080/linux-2.6/cset@420551fbRlv9-QG6Gw9Lw_bKV fPSsg).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Shaun Colley discovered a buffer overflow in 'shar' that was triggered by output files (specified with -o) with names longer than 49 characters. This could be exploited to run arbitrary attacker specified code on systems that automatically process uploaded files with shar.

Ulf Harnhammar discovered that shar does not check the data length returned by the 'wc' command. However, it is believed that this cannot actually be exploited on real systems.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A buffer overflow was discovered in the telnet client's handling of the LINEMODE suboptions. By sending a specially constructed reply containing a large number of SLC (Set Local Character) commands, a remote attacker (i. e. a malicious telnet server) could execute arbitrary commands with the privileges of the user running the telnet client. (CAN-2005-0469)

Michal Zalewski discovered a Denial of Service vulnerability in the telnet server (telnetd). A remote attacker could cause the telnetd process to free an invalid pointer, which caused the server process to crash, leading to a denial of service (inetd will disable the service if telnetd crashed repeatedly), or possibly the execution of arbitrary code with the privileges of the telnetd process (by default, the 'telnetd' user). Please note that the telnet server is not officially supported by Ubuntu, it is in the 'universe' component.
(CAN-2004-0911).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Javier Fernandez-Sanguino Pena noticed that cdrecord created temporary files in an insecure manner if DEBUG was enabled in /etc/cdrecord/rscsi. If the default value was used (which stored the debug output file in /tmp), this could allow a symbolic link attack to create or overwrite arbitrary files with the privileges of the user invoking cdrecord.

Please note that DEBUG is not enabled by default in Ubuntu, so if you did not explicitly enable it, this does not affect you.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several buffer overflows have been discovered in libxml2's FTP connection and DNS resolution functions. Supplying very long FTP URLs or IP addresses might result in execution of arbitrary code with the privileges of the process using libxml2.

Since libxml2 is used in packages like php4-imagick, the vulnerability also might lead to privilege escalation, like executing attacker supplied code with a web server's privileges.

However, this does not affect the core XML parsing code, which is what the majority of programs use this library for.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several integer overflow vulnerabilities were discovered in the PNG library. These vulnerabilities could be exploited by an attacker by providing a specially crafted PNG image which, when processed by the PNG library, could result in the execution of program code provided by the attacker.

The PNG library is used by a variety of software packages for different purposes, so the exact nature of the exposure will vary depending on the software involved.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Severity
20493	Ubuntu 4.10 : ipsec-tools vulnerability (USN-107-1)	medium
20492	Ubuntu 4.10 : gaim vulnerabilities (USN-106-1)	medium
20491	Ubuntu 4.10 : php4 vulnerabilities (USN-105-1)	medium
20490	Ubuntu 4.10 : sharutils vulnerability (USN-104-1)	high
20489	Ubuntu 4.10 : linux-source-2.6.8.1 vulnerabilities (USN-103-1)	high
20488	Ubuntu 4.10 : sharutils vulnerabilities (USN-102-1)	high
20487	Ubuntu 4.10 : netkit-telnet vulnerabilities (USN-101-1)	high
20486	Ubuntu 4.10 : cdrtools vulnerability (USN-100-1)	high
20485	Ubuntu 4.10 : XML library vulnerabilities (USN-10-1)	critical
20484	Ubuntu 4.10 : PNG library vulnerabilities (USN-1-1)	medium

Detections

Analytics

Ubuntu Local Security Checks Family for Nessus

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medium