GLSA 200501-38: Perl: rmtree and DBI tmpfile
Posted on: 03/15/2005 10:00 AM

A Perl security update is availble for Gentoo Linux

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Gentoo Linux Security Advisory [UPDATE] GLSA 200501-38:03
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http://security.gentoo.org/
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Severity: Normal
Title: Perl: rmtree and DBI tmpfile vulnerabilities
Date: January 26, 2005
Updated: March 15, 2005
Bugs: #75696, #78634, #79685
ID: 200501-38:03

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Update
=====

The rmtree race conditions were only partly fixed in the original GLSA. New versions of dev-lang/perl have been released to address the remaining issues (CAN-2005-0448).

The updated sections appear below.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-perl/DBI lt;= 1.38 *gt;= 1.37-r1
gt;= 1.38-r1
2 dev-lang/perl lt;= 5.8.6-r3 gt;= 5.8.6-r4
*gt;= 5.8.5-r5
*gt;= 5.8.4-r4
*gt;= 5.8.2-r4
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description
==========

Javier Fernandez-Sanguino Pena discovered that the DBI library creates temporary files in an insecure, predictable way (CAN-2005-0077). Paul Szabo found out that "File::Path::rmtree" is vulnerable to various race conditions (CAN-2004-0452, CAN-2005-0448).

Impact
=====

A local attacker could create symbolic links in the temporary files directory that point to a valid file somewhere on the filesystem. When the DBI library or File::Path::rmtree is executed, this could be used to overwrite or remove files with the rights of the user calling these functions.

Resolution
=========

All Perl users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose dev-lang/perl

All DBI library users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose dev-perl/DBI

References
=========

[ 1 ] CAN-2004-0452
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0452
[ 2 ] CAN-2005-0077
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0077
[ 3 ] CAN-2005-0448
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0448

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

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

http://security.gentoo.org/glsa/glsa-200501-38.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 http://bugs.gentoo.org.

License
======

Copyright 2005 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/2.0



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