Description
The l2tp_ip_recvmsg function in net/l2tp/l2tp_ip.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.
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
- http://www.ubuntu.com/usn/USN-2135-1 ↗
- http://www.ubuntu.com/usn/USN-2138-1 ↗
- http://www.ubuntu.com/usn/USN-2108-1 ↗
- http://www.ubuntu.com/usn/USN-2113-1 ↗
- http://www.ubuntu.com/usn/USN-2141-1 ↗
- http://www.ubuntu.com/usn/USN-2110-1 ↗
- http://seclists.org/oss-sec/2014/q1/29 ↗
- http://www.ubuntu.com/usn/USN-2136-1 ↗
- http://www.ubuntu.com/usn/USN-2139-1 ↗
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4 ↗
- https://github.com/torvalds/linux/commit/bceaa90240b6019ed73b49965eac7d167610be69 ↗
- http://www.ubuntu.com/usn/USN-2117-1 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1035875 ↗
- http://secunia.com/advisories/56036 ↗
- http://www.ubuntu.com/usn/USN-2109-1 ↗
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html ↗
- http://www.ubuntu.com/usn/USN-2107-1 ↗
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bceaa90240b6019ed73b49965eac7d167610be69 ↗
- http://www.openwall.com/lists/oss-security/2013/11/28/13 ↗
- http://secunia.com/advisories/55882 ↗