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Gentoo Linux Security Advisory                           GLSA 200611-10
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: WordPress: Multiple vulnerabilities
      Date: November 17, 2006
      Bugs: #153303
        ID: 200611-10

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Synopsis
=======
Flaws in WordPress allow a Denial of Service, the disclosure of user
metadata and the overwriting of restricted files.

Background
=========
WordPress is a PHP and MySQL based multiuser blogging system.

Affected packages
================
    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  www-apps/wordpress       < 2.0.5                         >= 2.0.5

Description
==========
"random" discovered that users can enter serialized objects as strings
in their profiles that will be harmful when unserialized. "adapter"
found out that user-edit.php fails to effectively deny non-permitted
users access to other user's metadata. Additionally, a directory
traversal vulnerability in the wp-db-backup module was discovered.

Impact
=====
By entering specially crafted strings in his profile, an attacker can
crash PHP or even the web server running WordPress. Additionally, by
crafting a simple URL, an attacker can read metadata of any other user,
regardless of their own permissions. A user with the permission to use
the database backup plugin can possibly overwrite files he otherwise
has no access to.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All WordPress users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/wordpress-2.0.5"

References
=========
  [ 1 ] CVE-2006-5705
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5705 
  [ 2 ] WordPress Ticket 3142
http://trac.wordpress.org/ticket/3142 
  [ 3 ] WordPress Ticket 2591
http://trac.wordpress.org/ticket/2591 

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

http://security.gentoo.org/glsa/glsa-200611-10.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 2006 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 

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