Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 5.0 and Thunderbird through 3.1.11 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14071
https://bugzilla.mozilla.org/show_bug.cgi?id=654015
https://bugzilla.mozilla.org/show_bug.cgi?id=653238
https://bugzilla.mozilla.org/show_bug.cgi?id=653026
https://bugzilla.mozilla.org/show_bug.cgi?id=652401
https://bugzilla.mozilla.org/show_bug.cgi?id=648705
https://bugzilla.mozilla.org/show_bug.cgi?id=648022
https://bugzilla.mozilla.org/show_bug.cgi?id=643927
https://bugzilla.mozilla.org/show_bug.cgi?id=643839
https://bugzilla.mozilla.org/show_bug.cgi?id=597162
http://www.redhat.com/support/errata/RHSA-2011-0888.html
http://www.redhat.com/support/errata/RHSA-2011-0887.html
http://www.redhat.com/support/errata/RHSA-2011-0886.html
http://www.redhat.com/support/errata/RHSA-2011-0885.html
http://www.mozilla.org/security/announce/2011/mfsa2011-19.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:111