[ GLSA 200704-05 ] zziplib: Buffer Overflow

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200704-05
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: zziplib: Buffer Overflow
      Date: April 03, 2007
      Bugs: #171441
        ID: 200704-05

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Synopsis
========

The zziplib library contains a buffer overflow vulnerability that could
lead to user-assisted remote execution of arbitrary code.

Background
==========

The zziplib library is a lightweight library for extracting data from
files archived in a single zip file.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  dev-libs/zziplib      < 0.13.49                        >= 0.13.49

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

dmcox dmcox discovered a boundary error in the zzip_open_shared_io()
function from zzip/file.c .

Impact
======

A remote attacker could entice a user to run a zziplib function with an
overly long string as an argument which would trigger the buffer
overflow and may lead to the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All zziplib users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/zziplib-0.13.49"

References
==========

  [ 1 ] CVE-2007-1614
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1614

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

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

  http://security.gentoo.org/glsa/glsa-200704-05.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 2007 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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