RHSA-2012:0321

Problem Description:

Updated cvs packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

Concurrent Version System (CVS) is a version control system that can record
the history of your files.

A heap-based buffer overflow flaw was found in the way the CVS client
handled responses from HTTP proxies. A malicious HTTP proxy could use this
flaw to cause the CVS client to crash or, possibly, execute arbitrary code
with the privileges of the user running the CVS client. (CVE-2012-0804)

All users of cvs are advised to upgrade to these updated packages, which
contain a patch to correct this issue.

4. Solution:

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

5. Bugs fixed (http://bugzilla.redhat.com/):

784141 - CVE-2012-0804 cvs: client proxy_connect heap-based buffer overflow