Bug 152573

Summary:	CAN-2004-1773 Buffer overflows in unshar
Product:	Red Hat Enterprise Linux 4	Reporter:	Josh Bressers <bressers>
Component:	sharutils	Assignee:	Than Ngo <than>
Status:	CLOSED ERRATA	QA Contact:	Jay Turner <jturner>
Severity:	low	Docs Contact:
Priority:	medium
Version:	4.0	CC:	srevivo
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=low,public=20041001,source=cve,reported=20050329
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-04-26 16:31:28 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 Josh Bressers 2005-03-30 14:20:27 UTC

Multiple buffer overflows in sharutils 4.2.1 and earlier may allow attackers to
execute arbitrary code via (1) long output from wc to shar, or (2) unknown
vectors in unshar.

To test this:
unshar `perl -e 'print "A"x2000'`/tmp/testing

There is a patch in the gentoo BTS:
http://bugs.gentoo.org/show_bug.cgi?id=65773

Comment 1 Josh Bressers 2005-03-30 14:20:57 UTC

This issue also affects RHEL2.1 and RHEL3

Comment 2 Ngo Than 2005-03-30 22:55:38 UTC

it's fixed in sharutils-4.2.1-8.8.x (RHEL-2.1), sharutils-4.2.1-16.1 (RHEL-3)
and sharutils-4.2.1-22.1 (RHEL-4)

Comment 6 Josh Bressers 2005-04-26 16:31:28 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-2005-377.html