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The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN
auth_ldap Security Update
[RHSA-2006:0179-7]
January 10, 2006 22:00 GMT Number Q-094
[REVISED 23 Jan 2006]
______________________________________________________________________________
PROBLEM: A format string flaw was found in the way auth_ldap logs
information.
PLATFORM: Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
Debian GNU/Linux 3.0 alias woody
DAMAGE: It may be possible for a remote attacker to execute arbitrary
code as the 'apache' user if auth_ldap is used for user
authentication.
SOLUTION: Apply current patches.
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VULNERABILITY The risk is MEDIUM. A remote attacker could execute arbitrary
ASSESSMENT: code.
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LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-094.shtml
ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2006-0179.html
ADDITIONAL LINK: http://www.debian.org/security/2006/dsa-952
CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=
CVE-2006-0150
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REVISION HISTORY:
01/23/2006 - revised to add a link to Debian Security Advisory DSA-952-1 for
Debian GNU/Linux 3.0 alias woody.
[***** Start RHSA-2006:0179-7 *****]
Critical: auth_ldap security update
Advisory: RHSA-2006:0179-7
Type: Security Advisory
Issued on: 2006-01-10
Last updated on: 2006-01-10
Affected Products: Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
CVEs (cve.mitre.org): CVE-2006-0150
Details
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.
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.
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.
Updated packages
Red Hat Enterprise Linux AS (v. 2.1)
SRPMS:
auth_ldap-1.4.8-3.1.src.rpm b386cc76da4f4dbbcafc5e0200567b76
IA-32:
auth_ldap-1.4.8-3.1.i386.rpm 569bce40fcb6cc7cefa9179d949fb192
IA-64:
auth_ldap-1.4.8-3.1.ia64.rpm 56aea79641ddb17dc98d26b6f20dd439
Red Hat Enterprise Linux ES (v. 2.1)
SRPMS:
auth_ldap-1.4.8-3.1.src.rpm b386cc76da4f4dbbcafc5e0200567b76
IA-32:
auth_ldap-1.4.8-3.1.i386.rpm 569bce40fcb6cc7cefa9179d949fb192
Red Hat Enterprise Linux WS (v. 2.1)
SRPMS:
auth_ldap-1.4.8-3.1.src.rpm b386cc76da4f4dbbcafc5e0200567b76
IA-32:
auth_ldap-1.4.8-3.1.i386.rpm 569bce40fcb6cc7cefa9179d949fb192
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
SRPMS:
auth_ldap-1.4.8-3.1.src.rpm b386cc76da4f4dbbcafc5e0200567b76
IA-64:
auth_ldap-1.4.8-3.1.ia64.rpm 56aea79641ddb17dc98d26b6f20dd439
(The unlinked packages above are only available from the Red Hat Network)
Bugs fixed (see bugzilla for more information)
177421 - CVE-2006-0150 auth_ldap format string issue
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0150
[***** End RHSA-2006:0179-7 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of RedHat for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
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