bugtraq - [ GLSA 200610-03 ] ncompress: Buffer Underflow

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20061006180100.GA30631@falco.falcal.net>
Date: Fri, 6 Oct 2006 20:01:00 +0200
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200610-03 ] ncompress: Buffer Underflow

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200610-03
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: ncompress: Buffer Underflow
      Date: October 06, 2006
      Bugs: #141728
        ID: 200610-03

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A buffer underflow vulnerability has been reported in ncompress
allowing for the execution of arbitrary code.

Background
==========

ncompress is a suite of utilities to create and extract
Lempel-Ziff-Welch (LZW) compressed archives.

Affected packages
=================

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  app-arch/ncompress      < 4.2.4.1                      >= 4.2.4.1

Description
===========

Tavis Ormandy of the Google Security Team discovered a static buffer
underflow in ncompress.

Impact
======

An attacker could create a specially crafted LZW archive, that when
decompressed by a user or automated system would result in the
execution of arbitrary code with the permissions of the user invoking
the utility.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ncompress users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-arch/ncompress-4.2.4.1"

References
==========

  [ 1 ] CVE-2006-1168
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1168

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200610-03.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

Content of type "application/pgp-signature" skipped