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Gentoo Linux Security Advisory                           GLSA 200812-14
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                                            https://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:

  https://security.gentoo.org/glsa/200812-14

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
https://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.

https://creativecommons.org/licenses/by-sa/2.5/