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Bug 216960

Summary:	CVE-2006-5823 zlib_inflate memory corruption
Product:	Red Hat Enterprise Linux 3	Reporter:	Marcel Holtmann <holtmann>
Component:	kernel	Assignee:	Eric Sandeen <esandeen>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	low	Docs Contact:
Priority:	medium
Version:	3.0	CC:	petrides, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=low,source=internet,reported=20061107,public=20061107
Fixed In Version:	RHSA-2007-0436	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-06-11 17:57:54 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 2006-11-22 21:42:04 UTC

From MOKB-07-11-2006:

http://projects.info-pull.com/mokb/MOKB-07-11-2006.html

Linux 2.6.x zlib_inflate function can be abused by filesystems that depend on
zlib compression, such as cramfs. A failure to handle crafted data, result of a
read operation in a corrupted filesystem stream, may lead to memory corruption.
This particular vulnerability requires a filesystem (proof of concept for cramfs
provided) to fail validation (ex. no integrity checking) of the binary stream in
order to reach execution of zlib_inflate().

Comment 1 Eric Sandeen 2006-11-30 17:28:41 UTC

As long as I've got the other ones...

Comment 3 RHEL Program Management 2006-12-15 14:46:14 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 4 Jay Turner 2006-12-18 14:14:50 UTC

QE ack for 3.9.

Comment 5 Ernie Petrides 2006-12-21 02:59:16 UTC

A fix for this problem has just been committed to the RHEL3 U9
patch pool this evening (in kernel version 2.4.21-47.4.EL).

Comment 8 Red Hat Bugzilla 2007-06-11 17:57:54 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-2007-0436.html