CentOS Errata and Security Advisory 2011:1165 Critical
Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-1165.html
The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename )
i386: c40cc320b40002cbe06066b30d6e32a6 thunderbird-2.0.0.24-21.el5.centos.i386.rpm
Source: cbe6c42cedb22a5bd78e22dacccbeda4 thunderbird-2.0.0.24-21.el5.centos.src.rpm