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Red Hat: 2012:0140-02 Urgent: Firefox Security Vulnerability Alert

red hat
Calendar Grey February 16, 2012
Scroller Redhat
A key patch for Red Hat's Apache HTTP Server resolves a significant vulnerability, improving protection for its user base.
An updated thunderbird package that fixes one security issue is now available for Red Hat Enterprise Linux 6

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

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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow critical Red Hat Enterprise Linux mail client Thunderbird

References

https://access.redhat.com/security/cve/CVE-2011-3026 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


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0140-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0140.html
Issue date: 2012-02-16

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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow critical Red Hat Enterprise Linux mail client Thunderbird

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

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