[ GLSA 200812-14 ] aview: Insecure temporary file usage

[Tobias Heinlein <keytoaster () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200812-14
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: aview: Insecure temporary file usage
      Date: December 14, 2008
      Bugs: #235808
        ID: 200812-14

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Synopsis
========

An insecure temporary file usage has been reported in aview, leading to
symlink attacks.

Background
==========

aview is an ASCII image viewer and animation player.

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

    -------------------------------------------------------------------
     Package          /    Vulnerable    /                  Unaffected
    -------------------------------------------------------------------
  1  media-gfx/aview     < 1.3.0_rc1-r1                >= 1.3.0_rc1-r1

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

Dmitry E. Oboukhov reported that aview uses the "/tmp/aview$$.pgm" file
in an insecure manner when processing files.

Impact
======

A local attacker could perform symlink attacks to overwrite arbitrary
files on the system with the privileges of the user running the
application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All aview users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/aview-1.3.0_rc1-r1"

References
==========

  [ 1 ] CVE-2008-4935
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4935

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

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

  http://security.gentoo.org/glsa/glsa-200812-14.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 2008 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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