[ GLSA 200412-07 ] file: Arbitrary code execution

[Matthias Geerdsen <vorlon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200412-07
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: file: Arbitrary code execution
      Date: December 13, 2004
      Bugs: #72521
        ID: 200412-07

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Synopsis
========

The code for parsing ELF headers in file contains a flaw which may
allow an attacker to execute arbitrary code.

Background
==========

file is a utility used to identify the type of a file.

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

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  sys-apps/file       < 4.12                                >= 4.12

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

A possible stack overflow has been found in the ELF header parsing code
of file.

Impact
======

An attacker may be able to create a specially crafted ELF file which,
when processed with file, may allow the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All file users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/file-4.12"

References
==========

  [ 1 ] SecurityTracker Alert ID 1012433
        http://securitytracker.com/id?1012433

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

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

  http://security.gentoo.org/glsa/glsa-200412-07.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/2.0

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