[gentoo-announce] [ GLSA 200805-17 ] Perl: Execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200805-17

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http://security.gentoo.org/

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Severity: Normal

Title: Perl: Execution of arbitrary code

Date: May 20, 2008

Bugs: #219203

ID: 200805-17

 

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Synopsis

========

 

A double free vulnerability was discovered in Perl, possibly resulting

in the execution of arbitrary code and a Denial of Service.

 

Background

==========

 

Perl is a stable, cross platform programming language.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 dev-lang/perl < 5.8.8-r5 >= 5.8.8-r5

2 sys-devel/libperl < 5.8.8-r2 >= 5.8.8-r2

-------------------------------------------------------------------

2 affected packages on all of their supported architectures.

-------------------------------------------------------------------

 

Description

===========

 

Tavis Ormandy and Will Drewry of the Google Security Team have reported

a double free vulnerability when processing a crafted regular

expression containing UTF-8 characters.

 

Impact

======

 

A remote attacker could possibly exploit this vulnerability to execute

arbitrary code or cause a Denial of Service.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All Perl users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-lang/perl-5.8.8-r5"

 

All libperl users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=sys-devel/libperl-5.8.8-r2"

 

References

==========

 

[ 1 ] CVE-2008-1927

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1927

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200805-17.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 ( -at -) gentoo.org or alternatively, you may file a bug at

http://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.

 

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