Home / mailings [gentoo-announce] [ GLSA 201111-09 ] Perl Safe module: Arbitrary Perl code injection
Posted on 20 November 2011
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Gentoo Linux Security Advisory GLSA 201111-09
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http://security.gentoo.org/
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Severity: Normal
Title: Perl Safe module: Arbitrary Perl code injection
Date: November 20, 2011
Bugs: #325563
ID: 201111-09
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Synopsis
========
The Safe module for Perl does not properly restrict code, allowing a
remote attacker to execute arbitrary Perl code outside of a restricted
compartment.
Background
==========
Safe is a Perl module to compile and execute code in restricted
compartments.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 perl-core/Safe < 2.27 >= 2.27
2 virtual/perl-Safe < 2.27 >= 2.27
-------------------------------------------------------------------
2 affected packages
-------------------------------------------------------------------
Description
===========
Unsafe code evaluation prevents the Safe module from properly
restricting the code of implicitly called methods on implicitly blessed
objects.
Impact
======
A remote attacker could entice a user to load a specially crafted Perl
script, resulting in execution arbitrary Perl code outside of a
restricted compartment.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All users of the standalone Perl Safe module should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=perl-core/Safe-2.27"
All users of the Safe module bundled with Perl should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=virtual/perl-Safe-2.27"
NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since July 18, 2010. It is likely that your system is already
no longer affected by this issue.
References
==========
[ 1 ] CVE-2010-1168
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1168
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201111-09.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 2011 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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