[gentoo-announce] [ GLSA 200808-09 ] OpenLDAP: Denial of Service vulnerability

[news 28]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gentoo Linux Security Advisory GLSA 200808-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

http://security.gentoo.org/

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Severity: Low

Title: OpenLDAP: Denial of Service vulnerability

Date: August 08, 2008

Bugs: #230269

ID: 200808-09

 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

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 ( -at -) 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