Date: Wed, 17 Nov 2004 10:18:58 +0100
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200411-25 ] SquirrelMail: Encoded text XSS vulnerability
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200411-25
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http://security.gentoo.org/
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Severity: Low
Title: SquirrelMail: Encoded text XSS vulnerability
Date: November 17, 2004
Bugs: #70739
ID: 200411-25
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Synopsis
========
Squirrelmail fails to properly sanitize user input, which could lead to
a compromise of webmail accounts.
Background
==========
SquirrelMail is a webmail package written in PHP. It supports IMAP and
SMTP, and can optionally be installed with SQL support.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-client/squirrelmail < 1.4.3a-r2 >= 1.4.3a-r2
Description
===========
SquirrelMail fails to properly sanitize certain strings when decoding
specially-crafted headers.
Impact
======
By enticing a user to read a specially-crafted e-mail, an attacker can
execute arbitrary scripts running in the context of the victim's
browser. This could lead to a compromise of the user's webmail account,
cookie theft, etc.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All SquirrelMail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/squirrelmail-1.4.3a-r2"
Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.
References
==========
[ 1 ] SquirrelMail Advisory
http://article.gmane.org/gmane.mail.squirrelmail.user/21169
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-25.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 2004 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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