The ip6_route_add function in net/ipv6/route.c in the Linux kernel through 3.13.6 does not properly count the addition of routes, which allows remote attackers to cause a denial of service (memory consumption) via a flood of ICMPv6 Router Advertisement packets.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-2309
• http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=c88507fbad8055297c1d1e21e599f46960cbee39
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
• http://secunia.com/advisories/57250
• http://www.openwall.com/lists/oss-security/2014/03/08/1
• http://www.securityfocus.com/bid/66095
• http://www.securitytracker.com/id/1029894