Mozilla Thunderbird is vulnerable to remote code execution (RCE). A flaw was found in the way Thunderbird handled the nsTreeSelection element. Malformed content could cause Thunderbird to execute arbitrary code with the privileges of the user running Thunderbird.
downloads.avaya.com/css/P8/documents/100134543
downloads.avaya.com/css/P8/documents/100144158
securityreason.com/securityalert/8310
www.debian.org/security/2011/dsa-2227
www.debian.org/security/2011/dsa-2228
www.debian.org/security/2011/dsa-2235
www.mandriva.com/security/advisories?name=MDVSA-2011:079
www.mozilla.org/security/announce/2011/mfsa2011-13.html
access.redhat.com/errata/RHSA-2011:0475
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=630919
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14020