Linux kernel built with the Common Internet File System (CONFIG_CIFS) support along with a feature to access Distributed File Systems (CONFIG_CIFS_DFS_UPCALL), is vulnerable to a memory corruption flaw caused by writing one byte past an allocated memory area. It occurs while mounting a DFS share wherein the server provides DFS referral names of certain length. The memory corruption leads to an unresponsive kernel and subsequent crash resulting in Denial of Service. An user/program able to mount a file system could use this flaw to crash the kernel resulting in DoS. Upstream fix: ------------- -> https://git.kernel.org/linus/1fc29bacedeabb278080e31bb9c1ecb49f143c3b Reference: ---------- -> http://www.openwall.com/lists/oss-security/2013/08/14/8
Statement: This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.