The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel through 3.12 allows remote attackers to cause a denial of service (infinite loop) via a small value in the IHL field of a packet with IPIP encapsulation.
- http://www.ubuntu.com/usn/USN-2070-1
- https://github.com/bl4ck5un/cve-2013-4348