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Gentoo Linux Security Advisory                           GLSA 200901-02
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: JHead: Multiple vulnerabilities
      Date: January 11, 2009
      Bugs: #242702, #243238
        ID: 200901-02

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Synopsis
========

Multiple vulnerabilities in JHead might lead to the execution of
arbitrary code or data loss.

Background
==========

JHead is an exif jpeg header manipulation tool.

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-gfx/jhead      < 2.84-r1                         >= 2.84-r1

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

Marc Merlin and John Dong reported multiple vulnerabilities in JHead:

* A buffer overflow in the DoCommand() function when processing the
  cmd argument and related to potential string overflows
  (CVE-2008-4575).

* An insecure creation of a temporary file (CVE-2008-4639).

* A error when unlinking a file (CVE-2008-4640).

* Insufficient escaping of shell metacharacters (CVE-2008-4641).

Impact
======

A remote attacker could possibly execute arbitrary code by enticing a
user or automated system to open a file with a long filename or via
unspecified vectors. It is also possible to trick a user into deleting
or overwriting files.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All JHead users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/jhead-2.84-r1"

References
==========

  [ 1 ] CVE-2008-4575
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4575
  [ 2 ] CVE-2008-4639
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4639
  [ 3 ] CVE-2008-4640
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4640
  [ 4 ] CVE-2008-4641
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4641

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

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

  http://security.gentoo.org/glsa/glsa-200901-02.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 2009 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