full-disclosure - [ GLSA 200611-16 ] Texinfo: Buffer overflow

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Date: Tue, 21 Nov 2006 16:24:57 +0100
From: Sune Kloppenborg Jeppesen <jaervosz@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200611-16 ] Texinfo: Buffer overflow

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Gentoo Linux Security Advisory                           GLSA 200611-16
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Texinfo: Buffer overflow
      Date: November 21, 2006
      Bugs: #154316
        ID: 200611-16

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Synopsis
========

Texinfo is vulnerable to a buffer overflow that could lead to the
execution of arbitrary code.

Background
==========

Texinfo is the official documentation system of the GNU project.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  sys-apps/texinfo      < 4.8-r5                          >= 4.8-r5

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

Miloslav Trmac from Red Hat discovered a buffer overflow in the
"readline()" function of texindex.c. The "readline()" function is
called by the texi2dvi and texindex commands.

Impact
======

By enticing a user to open a specially crafted Texinfo file, an
attacker could execute arbitrary code with the rights of the user
running Texinfo.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Texinfo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/texinfo-4.8-r5"

References
==========

  [ 1 ] CVE-2006-4810
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4810

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

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

  http://security.gentoo.org/glsa/glsa-200611-16.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

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