Moderate: libarchive security update
Security Advisory: Moderate
Updated libarchive packages that fix two security issues are now available
for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
The libarchive programming library can create and read several different
streaming archive formats, including GNU tar and cpio. It can also read ISO
9660 CD-ROM images.
Two heap-based buffer overflow flaws were discovered in libarchive. If a
user were tricked into expanding a specially-crafted ISO 9660 CD-ROM image
or tar archive with an application using libarchive, it could cause the
application to crash or, potentially, execute arbitrary code with the
privileges of the user running the application. (CVE-2011-1777,
CVE-2011-1778)
All libarchive users should upgrade to these updated packages, which
contain backported patches to correct these issues. All running
applications using libarchive must be restarted for this update to take
effect.
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259
Vulmon