Mandriva Linux Security Advisory 2011-133 - Security issues were identified and fixed in mozilla firefox and thunderbird. As more information has come to light about the attack on the DigiNotar Certificate Authority, Mandriva has improved the protections added in MFSA 2011-34. The main change is to add explicit distrust to the DigiNotar root certificate and several intermediates. Removing the root as in their previous fix meant the certificates could be considered valid if cross-signed by another Certificate Authority. 's control that did not chain to DigiNotar's root and were not previously blocked.
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