Critical: firefox security update

Updated firefox packages that fix several security issues are now available
for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

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

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 as the user running Firefox.
(CVE-2009-2462, CVE-2009-2463, CVE-2009-2464, CVE-2009-2465, CVE-2009-2466,
CVE-2009-2467, CVE-2009-2469, CVE-2009-2471)

Several flaws were found in the way Firefox handles malformed JavaScript
code. A website containing malicious content could launch a cross-site
scripting (XSS) attack or execute arbitrary JavaScript with the permissions
of another website. (CVE-2009-2472)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.0.12. You can find a link to the Mozilla
advisories in the References section of this errata.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.0.12, which corrects these issues. After installing the
update, Firefox must be restarted for the changes to take effect.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via 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

512128 - CVE-2009-2462 Mozilla Browser engine crashes
512131 - CVE-2009-2463 Mozilla Base64 decoding crash
512133 - CVE-2009-2464 Mozilla crash with multiple RDFs in XUL tree
512135 - CVE-2009-2465 Mozilla double frame construction crashes
512136 - CVE-2009-2466 Mozilla JavaScript engine crashes
512137 - CVE-2009-2467 Mozilla remote code execution during Flash player unloading
512142 - CVE-2009-2469 Mozilla remote code execution using watch and __defineSetter__ on SVG element
512146 - CVE-2009-2471 Mozilla setTimeout loses XPCNativeWrappers
512147 - CVE-2009-2472 Mozilla multiple cross origin wrapper bypasses

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2462
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2463
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2464
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2465
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2466
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2467
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2469
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2470
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2471
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2472
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2664
http://www.redhat.com/security/updates/classification/#critical
http://www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.12