Bug 152573 - CAN-2004-1773 Buffer overflows in unshar
Summary: CAN-2004-1773 Buffer overflows in unshar
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: sharutils
Version: 4.0
Hardware: All
OS: Linux
medium
low
Target Milestone: ---
: ---
Assignee: Than Ngo
QA Contact: Jay Turner
URL:
Whiteboard: impact=low,public=20041001,source=cve...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-03-30 14:20 UTC by Josh Bressers
Modified: 2015-01-08 00:09 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2005-04-26 16:31:28 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:377 0 low SHIPPED_LIVE Low: sharutils security update 2005-04-26 04:00:00 UTC

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
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