Mozilla Thunderbird before 2.0.0.24 and SeaMonkey before 1.1.19 process e-mail attachments with a parser that performs casts and line termination incorrectly, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted message, related to message indexing.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14259
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10805
https://exchange.xforce.ibmcloud.com/vulnerabilities/56993
https://bugzilla.mozilla.org/show_bug.cgi?id=505221
http://www.vupen.com/english/advisories/2010/1556
http://www.vupen.com/english/advisories/2010/0648
http://www.ubuntu.com/usn/USN-915-1
http://www.securityfocus.com/bid/38831
http://www.redhat.com/support/errata/RHSA-2010-0499.html
http://www.mozilla.org/security/announce/2010/mfsa2010-07.html
http://secunia.com/advisories/39001
http://secunia.com/advisories/38977
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html