Critical: firefox security update

Updated firefox packages that fix several security issues are now available
for Red Hat Enterprise Linux 6.

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 Firefox is an open source web browser. XULRunner provides the XUL
Runtime environment for Mozilla Firefox.

A race condition flaw was found in the way Firefox handled Document Object
Model (DOM) element properties. Malicious HTML content could cause Firefox
to crash or, potentially, execute arbitrary code with the privileges of the
user running Firefox. (CVE-2010-3765)

Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2010-3175, CVE-2010-3176, CVE-2010-3179, CVE-2010-3183,
CVE-2010-3180)

A flaw was found in the way the Gopher parser in Firefox converted text
into HTML. A malformed file name on a Gopher server could, when accessed by
a victim running Firefox, allow arbitrary JavaScript to be executed in the
context of the Gopher domain. (CVE-2010-3177)

A same-origin policy bypass flaw was found in Firefox. An attacker could
create a malicious web page that, when viewed by a victim, could steal
private data from a different website the victim had loaded with Firefox.
(CVE-2010-3178)

A flaw was found in the script that launches Firefox. The LD_LIBRARY_PATH
variable was appending a "." character, which could allow a local attacker
to execute arbitrary code with the privileges of a different user running
Firefox, if that user ran Firefox from within an attacker-controlled
directory. (CVE-2010-3182)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.6.11 and 3.6.12. You can find links to the Mozilla
advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.6.12, which corrects these issues. After installing the
update, Firefox must be restarted for the changes 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

642272 - CVE-2010-3176 Mozilla miscellaneous memory safety hazards
642275 - CVE-2010-3175 Mozilla miscellaneous memory safety hazards
642277 - CVE-2010-3179 Mozilla buffer overflow and memory corruption using document.write
642283 - CVE-2010-3180 Mozilla use-after-free error in nsBarProp
642286 - CVE-2010-3183 Mozilla dangling pointer vulnerability in LookupGetterOrSetter
642290 - CVE-2010-3177 Mozilla XSS in gopher parser when parsing hrefs
642294 - CVE-2010-3178 Mozilla cross-site information disclosure via modal calls
642300 - CVE-2010-3182 Mozilla unsafe library loading flaw
646997 - CVE-2010-3765 Firefox race condition flaw (MFSA 2010-73)

https://www.redhat.com/security/data/cve/CVE-2010-3175.html
https://www.redhat.com/security/data/cve/CVE-2010-3176.html
https://www.redhat.com/security/data/cve/CVE-2010-3177.html
https://www.redhat.com/security/data/cve/CVE-2010-3178.html
https://www.redhat.com/security/data/cve/CVE-2010-3179.html
https://www.redhat.com/security/data/cve/CVE-2010-3180.html
https://www.redhat.com/security/data/cve/CVE-2010-3182.html
https://www.redhat.com/security/data/cve/CVE-2010-3183.html
https://www.redhat.com/security/data/cve/CVE-2010-3765.html
http://www.redhat.com/security/updates/classification/#critical
http://www.mozilla.com/en-US/firefox/3.6.11/releasenotes/
http://www.mozilla.com/en-US/firefox/3.6.12/releasenotes/
http://www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.11
http://www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.12