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

[GLSA]

Gentoo Linux Security Advisory

Title: Perl Safe module: Arbitrary Perl code injection (GLSA 201111-09)
Severity: normal
Exploitable: remote
Date: November 20, 2011
Bug(s): #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: perl-core/Safe
Vulnerable: < 2.27
Unaffected: >= 2.27
Architectures: All supported architectures

Package: virtual/perl-Safe
Vulnerable: < 2.27
Unaffected: >= 2.27
Architectures: 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: