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UNIRAS Brief - 743/06 - OpenPKG Security Advisory: OpenPKG-SA-2006.033 - openldap



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______________________________________________________________________________

 UNIRAS (UK Government CERT) Briefing - 743/06 dated 13.11.06 time 14:20
 UNIRAS is part of NISCC (the UK National Infrastructure Security
 Co-ordination Centre)
______________________________________________________________________________

 UNIRAS material is available from the NISCC website at www.niscc.gov.uk
______________________________________________________________________________

Title
=====

OpenPKG Security Advisory: OpenPKG-SA-2006.033 - openldap

Detail
======

Evgeny Legerov discovered [0] a vendor-confirmed [1] Denial-of-Service
(DoS) vulnerability in OpenLDAP [2]. The vulnerability allows remote
attackers to cause a DoS via a certain combination of LDAP "Bind"
requests that trigger an assertion failure in "libldap". The flaw is
caused by incorrectly computing the length of a normalized name. The
Common Vulnerabilities and Exposures (CVE) project assigned the id
CVE-2006-5779 [3] to the problem.



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________________________________________________________________________

OpenPKG Security Advisory                                   OpenPKG GmbH
http://openpkg.org/security/                          http://openpkg.com
OpenPKG-SA-2006.033                                           2006-11-10
________________________________________________________________________

Package:          openldap
Vulnerability:    denial of service
OpenPKG Specific: no

Affected Series:  Affected Packages:            Corrected Packages:
E1.0-SOLID        <= openldap-2.3.28-E1.0.0     >= openldap-2.3.28-E1.0.1
2-STABLE-20061018 <= openldap-2.3.27-2.20061018 >= openldap-2.3.29-2.20061110
2-STABLE          <= openldap-2.3.28-2.20061022 >= openldap-2.3.29-2.20061110
CURRENT           <= openldap-2.3.28-20061022   >= openldap-2.3.29-20061110

Description:
  Evgeny Legerov discovered [0] a vendor-confirmed [1] Denial-of-Service
  (DoS) vulnerability in OpenLDAP [2]. The vulnerability allows remote
  attackers to cause a DoS via a certain combination of LDAP "Bind"
  requests that trigger an assertion failure in "libldap". The flaw is
  caused by incorrectly computing the length of a normalized name. The
  Common Vulnerabilities and Exposures (CVE) project assigned the id
  CVE-2006-5779 [3] to the problem.
________________________________________________________________________

References:
  [0] http://www.securityfocus.com/archive/1/archive/1/450728/100/0/threaded
  [1] http://www.openldap.org/its/index.cgi/Software%20Bugs?id=4740 
  [2] http://www.openldap.org/
  [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5779
________________________________________________________________________

For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg@xxxxxxxxxxx>" (ID 63C4CB9F) which
you can retrieve from http://openpkg.org/openpkg.org.pgp. Follow the
instructions on http://openpkg.org/security/signatures/ for details on
how to verify the integrity of this advisory.
________________________________________________________________________

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______________________________________________________________________________

UNIRAS wishes to acknowledge the contributions of OpenPKG for the
information contained in this briefing.
______________________________________________________________________________

This notice contains information released by the original author.
Some of the information may have changed since it was released. If the
vulnerability affects you, it may be prudent to retrieve the advisory
from the site of the original source to ensure that you receive the most
current information concerning that problem.

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______________________________________________________________________________

<End of UNIRAS Briefing>

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