CVE-2011-1093

high

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

https://bugzilla.redhat.com/show_bug.cgi?id=682954

http://www.securityfocus.com/bid/46793

http://rhn.redhat.com/errata/RHSA-2011-0833.html

http://openwall.com/lists/oss-security/2011/03/08/4

http://openwall.com/lists/oss-security/2011/03/08/19

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d

http://downloads.avaya.com/css/P8/documents/100145416

Details

Source: Mitre, NVD

Published: 2011-07-18

Updated: 2023-02-13

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High