RHSA-2007:0430 - Security Advisory

Topic

A updated openldap packages that fix a security flaw and a memory leak bug
are now available for Red Hat Enterprise Linux 3.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

Description

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access
Protocol) applications, libraries and development tools.

A flaw was found in the way OpenLDAP handled selfwrite access. Users with
selfwrite access were able to modify the distinguished name of any user.
Users with selfwrite access should only be able to modify their own
distinguished name. (CVE-2006-4600)

A memory leak bug was found in OpenLDAP's ldap_start_tls_s() function. An
application using this function could result in an Out Of Memory (OOM)
condition, crashing the application.

All users are advised to upgrade to this updated openldap package,
which contains a backported fix and is not vulnerable to these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 174830 - ldap_start_tls_s() leaks
• BZ - 234222 - CVE-2006-4600 openldap improper selfwrite access

CVEs

• CVE-2006-4600

References

• http://www.redhat.com/security/updates/classification/#low