From $URL : Linux kernel built with support to VFAT file system is vulnerable to a buffer overflow flaw which happens when converting UTF8 character string to UTF16 via function: utf8s_to_utf16s. An unprivileged user could use this flaw to crash the kernel causing DoS or potentially escalate privileges. Upstream fix: -> https://git.kernel.org/linus/0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd Reference: -> http://www.openwall.com/lists/oss-security/2013/02/26/5 -> http://www.exploit-db.com/exploits/23248/
There are no longer any 2.x or <3.3 kernels available in the repository with the exception of sys-kernel/xbox-sources which is unsupported by security.