﻿id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc
30	upgrade nss_ldap out of a vulnerability	price		"Quentin writes: """"""We are probably being affected by this. We currently have nss_ldap-257-3
installed, which may or may not include the patch that's in -258 to fix
this."""""" and forwards the email below.

Was [https://help.mit.edu/?q=531080].

---------- Forwarded message ----------
Date: Sun, 25 Nov 2007 22:43:56 +0100
From: Pierre-Yves Rofes <py@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com,
security-alerts@linuxsecurity.com
Subject: [gentoo-announce] [ GLSA 200711-33 ] nss_ldap: Information disclosure

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Gentoo Linux Security Advisory GLSA 200711-33
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http://security.gentoo.org/
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Severity: Low
Title: nss_ldap: Information disclosure
Date: November 25, 2007
Bugs: #198390
ID: 200711-33

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Synopsis
========

A race condition might lead to theft of user credentials or information
disclosure in services using nss_ldap.

Background
==========

nss_ldap is a Name Service Switch module which allows 'passwd', 'group'
and 'host' database information to be pulled from LDAP.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-auth/nss_ldap < 258 >= 258

Description
===========

Josh Burley reported that nss_ldap does not properly handle the LDAP
connections due to a race condition that can be triggered by
multi-threaded applications using nss_ldap, which might lead to
requested data being returned to a wrong process.

Impact
======

Remote attackers could exploit this race condition by sending queries
to a vulnerable server using nss_ldap, possibly leading to theft of
user credentials or information disclosure (e.g. Dovecot returning
wrong mailbox contents).

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All nss_ldap users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "">=sys-auth/nss_ldap-258""

References
==========

[ 1 ] CVE-2007-5794
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5794

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200711-33.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 2007 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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