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full-disclosure-uk: [Full-disclosure] [ GLSA 200808-09 ] OpenLDA

[Full-disclosure] [ GLSA 200808-09 ] OpenLDAP: Denial of Service vulnerability

From: Raphael Marichez <falco_at_nospam>
Date: Fri Aug 08 2008 - 17:31:00 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200808-09
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Severity: Low Title: OpenLDAP: Denial of Service vulnerability Date: August 08, 2008 Bugs: #230269 ID: 200808-09
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Synopsis


A flaw in OpenLDAP allows remote unauthenticated attackers to cause a Denial of Service.

Background


OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol.

Affected packages



Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-nds/openldap < 2.3.43 >= 2.3.43

Description


Cameron Hotchkies discovered an error within the parsing of ASN.1 BER encoded packets in the "ber_get_next()" function in libraries/liblber/io.c.

Impact


A remote unauthenticated attacker can send a specially crafted ASN.1 BER encoded packet which will trigger the error and cause an "assert()", terminating the "slapd" daemon.

Workaround


There is no known workaround at this time.

Resolution


All OpenLDAP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-nds/openldap-2.3.43"

References


  [ 1 ] CVE-2008-2952
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2952

Availability


This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200808-09.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 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



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