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UPDATE: [ GLSA 200501-38 ] Perl: rmtree and DBI tmpfile vuln
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kallamej
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PostPosted: Tue Mar 15, 2005 3:43 pm    Post subject: UPDATE: [ GLSA 200501-38 ] Perl: rmtree and DBI tmpfile vuln Reply with quote

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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 <= 1.38 *>= 1.37-r1
>= 1.38-r1
2 dev-lang/perl <= 5.8.6-r3 >= 5.8.6-r4
*>= 5.8.5-r5
*>= 5.8.4-r4
*>= 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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