Bug 238946 (CVE-2007-1496)

Summary:	CVE-2007-1496 Various NULL pointer dereferences in netfilter code
Product:	[Other] Security Response	Reporter:	Marcel Holtmann <holtmann>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dzickus, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2007-0347	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-05-16 18:57:30 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 2007-05-04 01:59:53 UTC

The nfnetlink_log in the netfilter code allows attackers to cause a denial of
service (crash) via unspecified vectors involving the (1) nfulnl_recv_config
function, (2) using "multiple packets per netlink message", and (3) bridged
packets, which trigger a NULL pointer dereference.

Comment 1 Don Howard 2007-05-07 17:17:18 UTC

A patch for this issue has been included in build 2.6.18-8.1.4.el5.

Comment 2 Mike Gahagan 2007-05-09 21:32:40 UTC

confirmed fix is in 2.6.18-8.1.4.el5.

Comment 5 Red Hat Bugzilla 2007-05-16 18:57:30 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-2007-0347.html