Red Hat: 2012:0140-01: thunderbird: Critical Advisory
Summary
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.
Summary
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
References
https://www.redhat.com/security/data/cve/CVE-2011-3026.html https://access.redhat.com/security/updates/classification/#critical
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
ppc64:
thunderbird-3.1.18-2.el6_2.ppc64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.ppc64.rpm
s390x:
thunderbird-3.1.18-2.el6_2.s390x.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.s390x.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
Topic
An updated thunderbird package that fixes one security issue is nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having criticalsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Bugs Fixed
790737 - CVE-2011-3026 libpng: Heap-buffer-overflow in png_decompress_chunk