[ GLSA 200411-12 ] zgv: Multiple buffer overflows

[Luke Macken <lewk () gentoo org>]

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Gentoo Linux Security Advisory                        GLSA 200411-12:01
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: zgv: Multiple buffer overflows
      Date: November 07, 2004
      Bugs: #69150
        ID: 200411-12:01

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Synopsis
========

zgv contains multiple buffer overflows that can potentially lead to the
execution of arbitrary code.

Background
==========

zgv is a console image viewer based on svgalib.

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

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  media-gfx/zgv        < 5.8                                 >= 5.8

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

Multiple arithmetic overflows have been detected in the image
processing code of zgv.

Impact
======

An attacker could entice a user to open a specially-crafted image file,
potentially resulting in execution of arbitrary code with the rights of
the user running zgv.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All zgv users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/zgv-5.8"

References
==========

  [ 1 ] BugTraq Advisory
        http://www.securityfocus.com/archive/1/379472

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

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

  http://security.gentoo.org/glsa/glsa-200411-12.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 () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 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/1.0

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