National Cyber Awareness System

Vulnerability Summary for CVE-2011-1093

Overview

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.

Description

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

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

Type: Patch Information

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

External Source: MLIST

Name: [oss-security] 20110308 CVE request: kernel: dccp: fix oops on Reset after close

Type: Patch Information

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

External Source: MLIST

Name: [oss-security] 20110308 Re: CVE request: kernel: dccp: fix oops on Reset after close

Type: Patch Information

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

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=720dc34bbbe9493c7bd48b2243058b4e447a929d

Type: Patch Information

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=720dc34bbbe9493c7bd48b2243058b4e447a929d

External Source: BID

Name: 46793

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

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38

Hyperlink:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38