Gentoo: 201310-11 Perl Parallel-ForkManager Module: Insecure temporary file
Posted by Benjamin D. Thomas   
Gentoo An insecure temporary file usage has been reported in the Perl Parallel-ForkManager module, possibly allowing symlink attacks.
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Gentoo Linux Security Advisory                           GLSA 201310-11
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Perl Parallel-ForkManager Module: Insecure temporary file
           usage
     Date: October 17, 2013
     Bugs: #389839
       ID: 201310-11

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Synopsis
========

An insecure temporary file usage has been reported in the Perl
Parallel-ForkManager module, possibly allowing symlink attacks.

Background
==========

Parallel-ForkManager is a simple parallel processing fork manager for
Perl.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-perl/Parallel-ForkManager
                                  < 1.20.0                  >= 1.20.0

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

The Perl Parallel-ForkManager module does not handle temporary files
securely.

Impact
======

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

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Parallel-ForkManager users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=dev-perl/Parallel-ForkManager-1.20.0"

References
==========

[ 1 ] CVE-2011-4115
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4115

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

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

 http://security.gentoo.org/glsa/glsa-201310-11.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
https://bugs.gentoo.org.

License

Copyright 2013 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