bugtraq - [FLSA-2005:2155] Updated sharutils package fixes security issues

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Message-ID: <4243480E.3020602@videotron.ca>
Date: Thu, 24 Mar 2005 18:06:54 -0500
From: Marc Deslauriers <marcdeslauriers@...eotron.ca>
To: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk
Subject: [FLSA-2005:2155] Updated sharutils package fixes
	security issues

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                Fedora Legacy Update Advisory

Synopsis:          Updated sharutils package fixes security issues
Advisory ID:       FLSA:2155
Issue date:        2005-03-24
Product:           Red Hat Linux, Fedora Core
Keywords:          Bugfix
Cross references:  https://bugzilla.fedora.us/show_bug.cgi?id=2155
CVE Names:         N/A
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1. Topic:

Updated sharutils packages that fix several security issues are now
available.

The sharutils package contains a set of tools for encoding and decoding
packages of files in binary or text format.

2. Relevant releases/architectures:

Red Hat Linux 7.3 - i386
Red Hat Linux 9 - i386
Fedora Core 1 - i386

3. Problem description:

Ulf Harnhammar discovered a buffer overflow in shar.c, where the length
of data returned by the wc command is not checked. Florian Schilhabel
discovered another buffer overflow in unshar.c. Shaun Colley discovered
a stack-based buffer overflow vulnerability in the -o command-line
option handler. An attacker could exploit these vulnerabilities to
execute arbitrary code as the user running one of the sharutils
programs.

All users of sharutils should upgrade to these packages, which resolve
these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which
are not installed but included in the list will not be updated.  Note
that you can also use wildcards (*.rpm) if your current directory *only*
contains the desired RPMs.

Please note that this update is also available via yum and apt.  Many
people find this an easier way to apply updates.  To use yum issue:

yum update

or to use apt:

apt-get update; apt-get upgrade

This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system.  This assumes that you
have yum or apt-get configured for obtaining Fedora Legacy content.
Please visit http://www.fedoralegacy.org/docs for directions on how to
configure yum and apt-get.

5. Bug IDs fixed:

http://bugzilla.fedora.us - bug #2155 - GNU Sharutils Multiple Buffer 
Overflows

6. RPMs required:

Red Hat Linux 7.3:

SRPM:
http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/sharutils-4.2.1-12.7.x.legacy.src.rpm

i386:
http://download.fedoralegacy.org/redhat/7.3/updates/i386/sharutils-4.2.1-12.7.x.legacy.i386.rpm

Red Hat Linux 9:

SRPM:
http://download.fedoralegacy.org/redhat/9/updates/SRPMS/sharutils-4.2.1-16.9.1.legacy.src.rpm

i386:
http://download.fedoralegacy.org/redhat/9/updates/i386/sharutils-4.2.1-16.9.1.legacy.i386.rpm

Fedora Core 1:

SRPM:
http://download.fedoralegacy.org/fedora/1/updates/SRPMS/sharutils-4.2.1-17.2.legacy.src.rpm

i386:
http://download.fedoralegacy.org/fedora/1/updates/i386/sharutils-4.2.1-17.2.legacy.i386.rpm

7. Verification:

SHA1 sum                                 Package Name
---------------------------------------------------------------------

192306ce2a6cecb89a950040b850f86a28b26998 
redhat/7.3/updates/i386/sharutils-4.2.1-12.7.x.legacy.i386.rpm
25fdf9cb3237bb9a7f9cd5fd211412d74f4f05c6 
redhat/7.3/updates/SRPMS/sharutils-4.2.1-12.7.x.legacy.src.rpm
d6f2e705ae07f48f5dbbc742f44cbc4dea4c446d 
redhat/9/updates/i386/sharutils-4.2.1-16.9.1.legacy.i386.rpm
678acff4ea03db0aa8bc8f8d90630ffe51d27625 
redhat/9/updates/SRPMS/sharutils-4.2.1-16.9.1.legacy.src.rpm
457f8c7a9bc795c5d33bd8bb3e508e2b1e884df0 
fedora/1/updates/i386/sharutils-4.2.1-17.2.legacy.i386.rpm
7fad3189ab60428f22869daf15304aa1c24b3037 
fedora/1/updates/SRPMS/sharutils-4.2.1-17.2.legacy.src.rpm

These packages are GPG signed by Fedora Legacy for security.  Our key is
available from http://www.fedoralegacy.org/about/security.php

You can verify each package with the following command:

     rpm --checksig -v <filename>

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the sha1sum with the following command:

     sha1sum <filename>

8. References:

http://www.securityfocus.com/advisories/7268

9. Contact:

The Fedora Legacy security contact is <secnotice@...oralegacy.org>. More
project details at http://www.fedoralegacy.org

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