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Gentoo alert 200501-38 (perl)

From:  Thierry Carrez <koon@gentoo.org>
To:  gentoo-announce@lists.gentoo.org
Subject:  [gentoo-announce] [ GLSA 200501-38 ] Perl: rmtree and DBI tmpfile vulnerabilities
Date:  Wed, 26 Jan 2005 21:40:15 +0100
Cc:  bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Perl: rmtree and DBI tmpfile vulnerabilities Date: January 26, 2005 Bugs: #78634, #75696 ID: 200501-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The Perl DBI library and File::Path::rmtree function are vulnerable to symlink attacks. Background ========== Perl is a cross platform programming language. The DBI is the standard database interface module for Perl. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-perl/dbi <= 1.38 *>= 1.37-r1 >= 1.38-r1 2 dev-lang/perl <= 5.8.6-r1 >= 5.8.6-r2 *>= 5.8.5-r3 *>= 5.8.4-r2 *>= 5.8.2-r2 ------------------------------------------------------------------- 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" also handles temporary files insecurely (CAN-2004-0452). 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 files with the rights of the user calling these functions. Workaround ========== There are no known workarounds at this time. 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-2005-0077 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-200... [ 2 ] CAN-2004-0452 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-200... 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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