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MFSA2011-35: Additional protection against fraudulent DigiNotar certificates

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MFSA2011-35: Additional protection against fraudulent DigiNotar certificates

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
09/06/2011
Created
07/25/2018
Added
09/08/2011
Modified
01/30/2015

Description

As more information has come to light about the attack on the DigiNotar Certificate Authority we have 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 our previous fix meant the certificates could be considered valid if cross-signed by another Certificate Authority. Importantly this list of distrusted certificates includes the "PKIOverheid" (PKIGovernment) intermediates under DigiNotar's control that did not chain to DigiNotar's root and were not previously blocked.

Solution(s)

  • mozilla-firefox-upgrade-3_6_22
  • mozilla-firefox-upgrade-6_0_2

References

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