CVE-2014-3631 Information

Description

The assoc_array_gc function in the associative-array implementation in lib/assoc_array.c in the Linux kernel before 3.16.3 does not properly implement garbage collection which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via multiple \keyctl newring\ operations followed by a \keyctl timeout\ operation.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=95389b08d93d5c06ec63ab49bd732b0069b7c35e http://osvdb.org/show/osvdb/111298 http://www.exploit-db.com/exploits/36268 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3 http://www.securityfocus.com/bid/70095 http://www.ubuntu.com/usn/USN-2378-1 http://www.ubuntu.com/usn/USN-2379-1 https://bugzilla.redhat.com/show_bug.cgi?id=1140325 https://github.com/torvalds/linux/commit/95389b08d93d5c06ec63ab49bd732b0069b7c35e