Critical: thunderbird security update

An updated thunderbird package that fixes several security issues is now
available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having critical
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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A memory corruption flaw was found in the way Thunderbird decoded certain
PNG images. An attacker could create a mail message containing a
specially-crafted PNG image that, when opened, could cause Thunderbird to
crash or, potentially, execute arbitrary code with the privileges of the
user running Thunderbird. (CVE-2010-1205)

Several flaws were found in the processing of malformed HTML mail content.
An HTML mail message containing malicious content could cause Thunderbird
to crash or, potentially, execute arbitrary code with the privileges of the
user running Thunderbird. (CVE-2010-0174, CVE-2010-1200, CVE-2010-1211,
CVE-2010-1214, CVE-2010-2753)

An integer overflow flaw was found in the processing of malformed HTML mail
content. An HTML mail message containing malicious content could cause
Thunderbird to crash or, potentially, execute arbitrary code with the
privileges of the user running Thunderbird. (CVE-2010-1199)

Several use-after-free flaws were found in Thunderbird. Viewing an HTML
mail message containing malicious content could result in Thunderbird
executing arbitrary code with the privileges of the user running
Thunderbird. (CVE-2010-0175, CVE-2010-0176, CVE-2010-0177)

A flaw was found in the way Thunderbird plug-ins interact. It was possible
for a plug-in to reference the freed memory from a different plug-in,
resulting in the execution of arbitrary code with the privileges of the
user running Thunderbird. (CVE-2010-1198)

A flaw was found in the way Thunderbird handled the "Content-Disposition:
attachment" HTTP header when the "Content-Type: multipart" HTTP header was
also present. Loading remote HTTP content that allows arbitrary uploads and
relies on the "Content-Disposition: attachment" HTTP header to prevent
content from being displayed inline, could be used by an attacker to serve
malicious content to users. (CVE-2010-1197)

A same-origin policy bypass flaw was found in Thunderbird. Remote HTML
content could steal private data from different remote HTML content
Thunderbird has loaded. (CVE-2010-2754)

All Thunderbird users should upgrade to this updated package, which
resolves these issues. All running instances of Thunderbird must be
restarted for the 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
http://kbase.redhat.com/faq/docs/DOC-11259

578147 - CVE-2010-0174 Mozilla crashes with evidence of memory corruption
578149 - CVE-2010-0175 Mozilla remote code execution with use-after-free in nsTreeSelection
578150 - CVE-2010-0176 Mozilla Dangling pointer vulnerability in nsTreeContentView
578152 - CVE-2010-0177 Mozilla Dangling pointer vulnerability in nsPluginArray
590804 - CVE-2010-1200 Mozilla Crashes with evidence of memory corruption
590828 - CVE-2010-1198 Mozilla Freed object reuse across plugin instances
590833 - CVE-2010-1199 Mozilla Integer Overflow in XSLT Node Sorting
590850 - CVE-2010-1197 Mozilla Content-Disposition: attachment ignored if Content-Type: multipart also present
608238 - CVE-2010-1205 libpng: out-of-bounds memory write
615455 - CVE-2010-1211 Mozilla miscellaneous memory safety hazards
615462 - CVE-2010-1214 Mozilla Plugin parameter EnsureCachedAttrParamArrays remote code execution vulnerability
615466 - CVE-2010-2753 Mozilla nsTreeSelection dangling pointer remote code execution vulnerability
615488 - CVE-2010-2754 Mozilla Cross-origin data leakage from script filename in error messages

https://www.redhat.com/security/data/cve/CVE-2010-0174.html
https://www.redhat.com/security/data/cve/CVE-2010-0175.html
https://www.redhat.com/security/data/cve/CVE-2010-0176.html
https://www.redhat.com/security/data/cve/CVE-2010-0177.html
https://www.redhat.com/security/data/cve/CVE-2010-1197.html
https://www.redhat.com/security/data/cve/CVE-2010-1198.html
https://www.redhat.com/security/data/cve/CVE-2010-1199.html
https://www.redhat.com/security/data/cve/CVE-2010-1200.html
https://www.redhat.com/security/data/cve/CVE-2010-1205.html
https://www.redhat.com/security/data/cve/CVE-2010-1211.html
https://www.redhat.com/security/data/cve/CVE-2010-1214.html
https://www.redhat.com/security/data/cve/CVE-2010-2753.html
https://www.redhat.com/security/data/cve/CVE-2010-2754.html
http://www.redhat.com/security/updates/classification/#critical