The IPv6 implementation in the kernel in Apple Mac OS X before 10.6.8 allows local users to cause a denial of service (NULL pointer dereference and reboot) via vectors involving socket options.
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
http://support.apple.com/kb/HT4723
Source: MITRE
Published: 2011-06-24
Updated: 2011-10-27
Type: NVD-CWE-Other
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM