Multiple stack-based buffer overflows in net/netfilter/ipvs/ip_vs_ctl.c in the Linux kernel before 2.6.33, when CONFIG_IP_VS is used, allow local users to gain privileges by leveraging the CAP_NET_ADMIN capability for (1) a getsockopt system call, related to the do_ip_vs_get_ctl function, or (2) a setsockopt system call, related to the do_ip_vs_set_ctl function.
https://github.com/torvalds/linux/commit/04bcef2a83f40c6db24222b27a52892cba39dffb
https://bugzilla.redhat.com/show_bug.cgi?id=1030800
http://www.ubuntu.com/usn/USN-2065-1
http://www.ubuntu.com/usn/USN-2064-1
http://www.securityfocus.com/bid/63744