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AUSCERT External Security Bulletin Redistribution
ESB-2006.0019 -- [Win][UNIX/Linux][RedHat]
Critical: auth_ldap security update
11 January 2006
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AusCERT Security Bulletin Summary
---------------------------------
Product: auth_ldap (Apache LDAP authentication module)
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS/ES/WS 2.1
Red Hat Linux Advanced Workstation 2.1
UNIX variants (UNIX, Linux, OSX)
Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2006-0150
Original Bulletin: https://rhn.redhat.com/errata/RHSA-2006-0179.html
Comment: This vulnerability is fixed in auth_ldap 1.6.1, available at
http://www.rudedog.org/auth_ldap/
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Red Hat Security Advisory
Synopsis: Critical: auth_ldap security update
Advisory ID: RHSA-2006:0179-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2006-0179.html
Issue date: 2006-01-10
Updated on: 2006-01-10
Product: Red Hat Enterprise Linux
CVE Names: CVE-2006-0150
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1. Summary:
An updated auth_ldap packages that fixes a format string security issue is
now available for Red Hat Enterprise Linux 2.1.
This update has been rated as having critical security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
3. Problem description:
The auth_ldap package is an httpd module that allows user authentication
against information stored in an LDAP database.
A format string flaw was found in the way auth_ldap logs information. It
may be possible for a remote attacker to execute arbitrary code as the
'apache' user if auth_ldap is used for user authentication. The Common
Vulnerabilities and Exposures project assigned the name CVE-2006-0150
to this issue.
Note that this issue only affects servers that have auth_ldap installed and
configured to perform user authentication against an LDAP database.
All users of auth_ldap should upgrade to this updated package, which
contains a backported patch to resolve this issue.
This issue does not affect the Red Hat Enterprise Linux 3 or 4
distributions as they do not include the auth_ldap package.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/):
177421 - CVE-2006-0150 auth_ldap format string issue
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/auth_ldap-1.4.8-3.1.src.rpm
b386cc76da4f4dbbcafc5e0200567b76 auth_ldap-1.4.8-3.1.src.rpm
i386:
569bce40fcb6cc7cefa9179d949fb192 auth_ldap-1.4.8-3.1.i386.rpm
ia64:
56aea79641ddb17dc98d26b6f20dd439 auth_ldap-1.4.8-3.1.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/auth_ldap-1.4.8-3.1.src.rpm
b386cc76da4f4dbbcafc5e0200567b76 auth_ldap-1.4.8-3.1.src.rpm
ia64:
56aea79641ddb17dc98d26b6f20dd439 auth_ldap-1.4.8-3.1.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/auth_ldap-1.4.8-3.1.src.rpm
b386cc76da4f4dbbcafc5e0200567b76 auth_ldap-1.4.8-3.1.src.rpm
i386:
569bce40fcb6cc7cefa9179d949fb192 auth_ldap-1.4.8-3.1.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/auth_ldap-1.4.8-3.1.src.rpm
b386cc76da4f4dbbcafc5e0200567b76 auth_ldap-1.4.8-3.1.src.rpm
i386:
569bce40fcb6cc7cefa9179d949fb192 auth_ldap-1.4.8-3.1.i386.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0150
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2006 Red Hat, Inc.
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