CVE-2007-4752
ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted.
Date published : 2007-09-11
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html