CVE-2013-3076 Information

Description

The crypto API in the Linux kernel through 3.9-rc8 does not initialize certain length variables which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call related to the hash_recvmsg function in crypto/algif_hash.c and the skcipher_recvmsg function in crypto/algif_skcipher.c.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103750.html http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104480.html http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html http://www.openwall.com/lists/oss-security/2013/04/14/3 http://www.ubuntu.com/usn/USN-1837-1 https://github.com/torvalds/linux/commit/72a763d805a48ac8c0bf48fdb510e84c12de51fe