Description
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://lkml.org/lkml/2011/11/15/363 ↗
- http://www.securityfocus.com/bid/50755 ↗
- http://www.ubuntu.com/usn/USN-1328-1 ↗
- http://www.ubuntu.com/usn/USN-1344-1 ↗
- http://www.openwall.com/lists/oss-security/2011/11/22/5 ↗
- http://www.openwall.com/lists/oss-security/2011/11/21/19 ↗
- http://www.ubuntu.com/usn/USN-1324-1 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=751297 ↗
- http://secunia.com/advisories/47754 ↗
- http://www.openwall.com/lists/oss-security/2011/11/22/6 ↗
- http://marc.info/?l=bugtraq&m=139447903326211&w=2 ↗