UCI Information Security

Mozilla has released Thunderbird versions 13.0 which fixes a number of critical security issues including potential memory corruption. All Thunderbird users should apply the update as soon as possible.

For more information, see
http://www.mozilla.org/en-US/thunderbird/13.0/releasenotes/

For Thunderbird ESR admins, the equivalent release is Thunderbird 10.0.5esr. See http://www.mozilla.org/en-US/thunderbird/organizations/ for more information.