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fc found a buffer overflow in the variable expansion code used by sudo for its prompt. Since sudo is necessarily installed suid root a local user can use this to gain root access.

Previous versions of imlib, prior to 1.9.13, would fall back to the NetPBM library which is not suitable for loading untrusted images due to various problem in it's code. The new imlib also fixes some problems with arguments passed to malloc(). These problems could allow attackers to construct images that could cause crashes or, potentially, the execution of arbitrary code when said images are loaded by a viewer that uses imlib. Thanks to Alan Cox and Al Viro for discovering the problems.

A problem was discovered by fc, with further research by Global InterSec, in the sudo program with the password prompt parameter (-p). Sudo can be tricked into allocating less memory than it should for the prompt and in certain conditions it is possible to exploit this flaw to corrupt the heap in such a way that could be used to execute arbitary commands. Because sudo is generally suid root, this can lead to an elevation of privilege for local users.

Updated icecast packages are available which fix a number of security issues.

Updated sudo packages are available which fix a local root exploit.

Updated sudo packages are available which fix a local root exploit.

Updated sudo packages are available which fix a local root exploit.

New sudo packages are available to fix a security problem which may allow users to become root, or to execute arbitrary code as root.

Ethan Benson discovered a bug in rsync where the supplementary groups that the rsync daemon runs as (such as root) would not be removed from the server process after changing to the specified unprivileged uid and gid. This seems only serious if rsync is called using "rsync --daemon" from the command line where it will inherit the group of the user starting the server (usually root). Note that, by default, Mandrake Linux uses xinetd to handle connections to the rsync daemon. This was fixed upstream in version 2.5.3, as well as the previously noted zlib fixes (see MDKSA-2002:023). The authors released 2.5.4 with some additional zlib fixes, and all users are encouraged to upgrade to this new version of rsync. Update: Mandrake Linux 8.1/ia64 packages are now available.

An internal audit by the xpilot (a multi-player tactical manoeuvring game for X) maintainers revealed a buffer overflow in xpilot server. This overflow can be abused by remote attackers to gain access to the server under which the xpilot server is running.

Error and boundary conditions were not checked when handling compressed DNS answer messages in the internal DNS code (lib/rfc1035.c). A malicous DNS server could craft a DNS reply that causes Squid to exit with a SIGSEGV.

A cross-site scripting (CSS) problem was discovered in Horde and IMP (a web based IMAP mail package). This was fixed upstream in Horde version 1.2.8 and IMP version 2.2.8. The relevant patches have been back-ported to version 1.2.6-0.potato.5 of the horde package and version 2.2.6-0.potato.5 of the imp package.

Wojciech Purczynski discovered that format string protection in libsafe can be easily bypassed by using flag characters that are implemented in glibc but are not implemented in libsafe. It was also discovered that *printf function wrappers incorrectly parse argument indexing in format strings, making some incorrect assumptions on the number of arguments and conversion specifications. These problems were fixed by the libsafe authors in 2.0-12.

Updated tcpdump, libpcap, and arpwatch packages are available for Red Hat Linux 6.2 and 7.x. These updates close vulnerabilities present in versions of tcpdump up to 3.5.1 and various other bugs.

Updated tcpdump, libpcap, and arpwatch packages are available for Red Hat Linux 6.2 and 7.x. These updates close vulnerabilities present in versions of tcpdump up to 3.5.1 and various other bugs.

The Secure Programming Group of the Oulu University, Sweden released a testing suite for SNMP implementations. Several bugs could be triggered in the ucd-snmpd code by using this testing suite. These bugs lead to remote denial-of-service attacks and may possibly exploited to break system security remotely. Additionally, the SuSE Security Team did a full audit of the ucd-snmpd code and we hope to avoid more problems caused by other bugs in the future.

Updated LogWatch packages are available that fix tmp file race conditions which can cause a local user to gain root privileges.

Updated LogWatch packages are available that fix tmp file race conditions which can cause a local user to gain root privileges.

Yuji Takahashi discovered a bug in analog which allows a cross-site scripting type attack. It is easy for an attacker to insert arbitrary strings into any web server logfile. If these strings are then analysed by analog, they can appear in the report. By this means an attacker can introduce arbitrary Javascript code, for example, into an analog report produced by someone else and read by a third person. Analog already attempted to encode unsafe characters to avoid this type of attack, but the conversion was incomplete.

The authors of mtr released a new upstream version, noting a non-exploitable buffer overflow in their ChangeLog. Przemyslaw Frasunek, however, found an easy way to exploit this bug, which allows an attacker to gain access to the raw socket, which makes IP spoofing and other malicious network activity possible.