GLSA 200411-25: SquirrelMail: Encoded text XSS vulnerability

http://security.gentoo.org/

Severity:	low
Title:	SquirrelMail: Encoded text XSS vulnerability
Date:	11/17/2004
Bugs:	#70739
ID:	200411-25

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	Architecture(s)
mail-client/squirrelmail	< 1.4.3a-r2	>= 1.4.3a-r2	All supported architectures

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

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 https://bugs.gentoo.org.