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full-disclosure-uk: [Full-disclosure] [ GLSA 200901-04 ] D-Bus:

[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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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@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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