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[Full-disclosure] [ GLSA 200901-04 ] D-Bus: Denial of Service
From: Robert Buchholz <rbu_at_nospam>Date: Sun Jan 11 2009 - 00:42:12 GMT
To: gentoo-announce@gentoo.org
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 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@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
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