Published: 18 August 2008
Integer overflow in the dccp_setsockopt_change function in net/dccp/proto.c in the Datagram Congestion Control Protocol (DCCP) subsystem in the Linux kernel 2.6.17-rc1 through 126.96.36.199 allows remote attackers to cause a denial of service (panic) via a crafted integer value, related to Change L and Change R options without at least one byte in the dccpsf_val field.
From the Ubuntu security team
It was discovered that the Datagram Congestion Control Protocol (DCCP) did not correctly validate its arguments. If DCCP was in use, a remote attacker could send specially crafted network traffic and cause a system crash, leading to a denial of service.