Ubuntu Security Notice USN-10-1 October 28, 2004
XML library vulnerabilities CAN-2004-0981
A security issue affects the following Ubuntu releases:
Ubuntu 4.10 (Warty Warthog)
The following packages are affected:
The problem can be corrected by upgrading the affected package to
version 2.6.11-3ubuntu1.1. In general, a standard system upgrade is
sufficient to effect the necessary changes.
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.