Bug 245774 (CVE-2007-2876)

Summary:	CVE-2007-2876 {ip, nf}_conntrack_sctp: remotely triggerable NULL ptr dereference
Product:	[Other] Security Response	Reporter:	Marcel Holtmann <holtmann>
Component:	vulnerability	Assignee:	Don Howard <dhoward>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	high	Docs Contact:
Priority:	low
Version:	unspecified	CC:	qcai, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2007-0705	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-09-13 09:13:19 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Marcel Holtmann 2007-06-26 17:20:55 UTC

From Vilmos Nebehaj:

When creating a new connection by sending an unknown chunk type, we don't
transition to a valid state, causing a NULL pointer dereference in sctp_packet
when accessing sctp_timeouts[SCTP_CONNTRACK_NONE].

Comment 1 Don Howard 2007-08-29 19:29:57 UTC

A patch for this issue has been included in build 2.6.18-8.1.9.

Comment 4 Red Hat Bugzilla 2007-09-13 09:13:19 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0705.html