USN-498-1: libvorbis vulnerabilities

Releases

• Ubuntu 7.04
• Ubuntu 6.10
• Ubuntu 6.06

Details

David Thiel discovered that libvorbis did not correctly verify the size
of certain headers, and did not correctly clean up a broken stream.
If a user were tricked into processing a specially crafted Vorbis stream,
a remote attacker could execute arbitrary code with the user's privileges.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 7.04

• libvorbis0a - 1.1.2.dfsg-1.2ubuntu2

Ubuntu 6.10

• libvorbis0a - 1.1.2-1ubuntu1.2

Ubuntu 6.06

• libvorbis0a - 1.1.2-0ubuntu2.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

• CVE-2007-3106
• CVE-2007-4029