RHSA-2008:0271 - Security Advisory

Topic

Updated libvorbis packages that fix various security issues are now
available for Red Hat Enterprise Linux 2.1.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Description

The libvorbis packages contain runtime libraries for use in programs that
support Ogg Vorbis. Ogg Vorbis is a fully open, non-proprietary, patent-and
royalty-free, general-purpose compressed audio format.

Will Drewry of the Google Security Team reported several flaws in the way
libvorbis processed audio data. An attacker could create a carefully
crafted OGG audio file in such a way that it could cause an application
linked with libvorbis to crash, or execute arbitrary code when it was
opened. (CVE-2008-1419, CVE-2008-1420, CVE-2008-1423, CVE-2008-2009)

Moreover, additional OGG file sanity-checks have been added to prevent
possible exploitation of similar issues in the future.

Users of libvorbis are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 2 ia64
• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 440700 - CVE-2008-1419 vorbis: zero-dim codebooks can cause crash, infinite loop or heap overflow
• BZ - 440706 - CVE-2008-1420 vorbis: integer overflow in partvals computation
• BZ - 440709 - CVE-2008-1423 vorbis: integer oveflow caused by huge codebooks
• BZ - 444443 - CVE-2008-2009 vorbis: insufficient validation of Huffman tree causing memory corruption in _make_decode_tree()

CVEs

• CVE-2008-1423
• CVE-2008-2009
• CVE-2008-1420
• CVE-2008-1419

References

(none)