GLSA 201111-09: Perl Safe module: Arbitrary Perl code injection

http://security.gentoo.org/

Severity:	normal
Title:	Perl Safe module: Arbitrary Perl code injection
Date:	11/20/2011
Bugs:	#325563
ID:	201111-09

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	Architecture(s)
perl-core/Safe	< 2.27	>= 2.27	All supported architectures
virtual/perl-Safe	< 2.27	>= 2.27	All supported architectures

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

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.