Mozilla Firefox is vulnerable to Remote Code Execution (RCE). Due to the flaws found in the processing of malformed web content, a page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox.
lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
secunia.com/advisories/36669
secunia.com/advisories/36670
secunia.com/advisories/36671
secunia.com/advisories/36692
secunia.com/advisories/37098
secunia.com/advisories/38977
secunia.com/advisories/39001
www.debian.org/security/2009/dsa-1885
www.mozilla.org/security/announce/2009/mfsa2009-47.html
www.mozilla.org/security/announce/2010/mfsa2010-07.html
www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.14
www.novell.com/linux/security/advisories/2009_48_firefox.html
www.redhat.com/security/updates/classification/#critical
www.redhat.com/support/errata/RHSA-2009-1430.html
www.redhat.com/support/errata/RHSA-2009-1431.html
www.redhat.com/support/errata/RHSA-2009-1432.html
www.redhat.com/support/errata/RHSA-2010-0153.html
www.redhat.com/support/errata/RHSA-2010-0154.html
www.securityfocus.com/bid/36343
www.ubuntu.com/usn/USN-915-1
www.vupen.com/english/advisories/2010/0648
www.vupen.com/english/advisories/2010/0650
access.redhat.com/errata/RHSA-2009:1430
bugzilla.mozilla.org/show_bug.cgi?id=494283
bugzilla.mozilla.org/show_bug.cgi?id=501900
bugzilla.mozilla.org/show_bug.cgi?id=508074
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10349
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6315