Article Source Mandriva Linux Security Advisories
 A number of security vulnerabilities have been discovered in Mozilla
  Thunderbird:
  Security issues in thunderbird could lead to a man-in-the-middle
  attack via a spoofed X.509 certificate (CVE-2009-2408).
  A vulnerability was found in xmltok_impl.c (expat) that with
  specially crafted XML could be exploited and lead to a denial of
  service attack. Related to CVE-2009-2625 (CVE-2009-3720).
  This update provides the latest version of Thunderbird which are not
  vulnerable to these issues.
Update:
  Packages for 2008.0 are being provided due to extended support for
  Corporate products.
 
                
