[gentoo-announce] [ GLSA 200901-04 ] D-Bus: Denial of Service

[news 28]

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Gentoo Linux Security Advisory GLSA 200901-04

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http://security.gentoo.org/

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Severity: Normal

Title: D-Bus: Denial of Service

Date: January 11, 2009

Bugs: #240308

ID: 200901-04

 

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Synopsis

========

 

An error condition can cause D-Bus to crash.

 

Background

==========

 

D-Bus is a daemon providing a framework for applications to communicate

with one another.

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 sys-apps/dbus < 1.2.3-r1 >= 1.2.3-r1

 

Description

===========

 

schelte reported that the dbus_signature_validate() function can

trigger a failed assertion when processing a message containing a

malformed signature.

 

Impact

======

 

A local user could send a specially crafted message to the D-Bus

daemon, leading to a Denial of Service.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All D-Bus users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.2.3-r1"

 

References

==========

 

[ 1 ] CVE-2008-3834

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3834

 

Availability

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

 

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

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200901-04.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 2009 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