CVE-2011-1093

Linux Kernel < 2.6.38 - Denial of Service via DCCP Packet Handling

Title source: llm
STIX 2.1

Description

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.

References (8)

Core 8
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/46793
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2011-0833.html
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=682954
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/03/08/4
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/03/08/19
Third Party Advisory x_refsource_confirm
http://downloads.avaya.com/css/P8/documents/100145416

Scores

EPSS 0.0341
EPSS Percentile 87.4%

Details

CWE
CWE-476
Status published
Products (6)
linux/linux_kernel < 2.6.38
redhat/enterprise_linux_aus 5.6
redhat/enterprise_linux_desktop 5.0
redhat/enterprise_linux_eus 5.6
redhat/enterprise_linux_server 5.0
redhat/enterprise_linux_workstation 5.0
Published Jul 18, 2011
Tracked Since Feb 18, 2026