The ping_recvmsg function in net/ipv4/ping.c in the Linux kernel before 3.12.4 does not properly interact with read system calls on ping sockets, which allows local users to cause a denial of service (NULL pointer dereference and system crash) by leveraging unspecified privileges to execute a crafted application.
https://bugzilla.redhat.com/show_bug.cgi?id=1039046
http://www.ubuntu.com/usn/USN-2117-1
http://www.ubuntu.com/usn/USN-2113-1
http://www.openwall.com/lists/oss-security/2013/12/06/6
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html