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AUSCERT External Security Bulletin Redistribution
ESB-2006.0835 -- [Win][UNIX/Linux]
OpenPKG-SA-2006.033 - OpenLDAP Denial of Service
14 November 2006
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AusCERT Security Bulletin Summary
---------------------------------
Product: OpenLDAP
Publisher: OpenPKG
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2006-5779
Original Bulletin:
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=4740
Comment: This advisory references vulnerabilities in products which run on
multiple platforms. It is recommended that administrators running
OpenLDAP check for an updated version of the software for their
operating system.
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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@openpkg.org>" (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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