[gentoo-announce] [ GLSA 200809-01 ] yelp: User-assisted execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200809-01

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http://security.gentoo.org/

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Severity: Normal

Title: yelp: User-assisted execution of arbitrary code

Date: September 04, 2008

Bugs: #234079

ID: 200809-01

 

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Synopsis

========

 

A vulnerability in yelp can lead to the execution of arbitrary code

when opening a URI, for example through Firefox.

 

Background

==========

 

yelp is the default help browser for GNOME.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 gnome-extra/yelp < 2.22.1-r2 >= 2.22.1-r2

*>= 2.20.0-r1

 

Description

===========

 

Aaron Grattafiori reported a format string vulnerability in the

window_error() function in yelp-window.c.

 

Impact

======

 

A remote attacker can entice a user to open specially crafted "man:" or

"ghelp:" URIs in yelp, or an application using yelp such as Firefox or

Evolution, and execute arbitrary code with the privileges of that user.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All yelp users running GNOME 2.22 should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=gnome-extra/yelp-2.22.1-r2"

 

All yelp users running GNOME 2.20 should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=gnome-extra/yelp-2.20.0-r1"

 

References

==========

 

[ 1 ] CVE-2008-3533

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3533

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200809-01.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 ( -at -) gentoo.org or alternatively, you may file a bug at

http://bugs.gentoo.org.

 

License

=======

 

Copyright 2008 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