DCCP Implementation NULL Pointer Dereference and OOPS Vulnerability

CVE-2011-1093 · HIGH Severity

AV:N/AC:L/AU:N/C:N/I:N/A:C

The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.

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