thunderbird security update

CentOS Errata and Security Advisory CESA-2012:0140

Mozilla Thunderbird is a standalone mail and newsgroup client.

A heap-based buffer overflow flaw was found in the way Thunderbird handled
PNG (Portable Network Graphics) images. An HTML mail message or remote
content containing a specially-crafted PNG image could cause Thunderbird to
crash or, possibly, execute arbitrary code with the privileges of the user
running Thunderbird. (CVE-2011-3026)

All Thunderbird users should upgrade to this updated package, which
corrects this issue. After installing the update, Thunderbird must be
restarted for the changes to take effect.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2012-February/080606.html

Affected packages:
thunderbird

Upstream details at:
https://access.redhat.com/errata/RHSA-2012:0140