CVE-2012-0654
libsecurity in Apple Mac OS X before 10.7.4 accesses uninitialized memory locations during the processing of X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted certificate.
Date published : 2012-05-10
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html