Date: Fri, 4 Jul 2003 19:39:00 -0300
From: Conectiva Updates <secure@conectiva.com.br>
To: conectiva-updates@papaleguas.conectiva.com.br, lwn@lwn.net,
Subject: [CLA-2003:685] Conectiva Security Announcement - openldap
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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : openldap
SUMMARY : Denial of Service and other (non-security) fixes
DATE : 2003-07-04 19:34:00
ID : CLA-2003:685
RELEVANT
RELEASES : 9
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DESCRIPTION
OpenLDAP[1] is an LDAPv2 and LDAPv3 server available for several
platforms.
This update addresses the following issues in the OpenLDAP package
shipped with Conectiva Linux 9:
1) Denial of Service vulnerability[2]
A failed password extended operation (password EXOP) can cause
openldap to, if using the back-ldbm backend, attempt to free memory
which was never allocated, resulting in a segfault. The back-bdb
backend, on the other hand, has a memory leak in the same code. Both
conditions can be triggered remotely.
2) Crypt and md5 hash support[3]
The OpenLDAP packages shipped with Conectiva Linux 9 do not have
support for crypt and md5 password hashes. As a result, users
migrated to LDAP from system password files will not be able to
authenticate against the directory using simple binds.
3) One shot replication mode does not work[4]
The slurpd program shipped with OpenLDAP is responsible for
replicating data from a master OpenLDAP server to slave servers. It
has a replication mode called "one shot" which takes a replication
log file and attempts to replicate all changes to the specified
slaves and then exits. This mode was not working in openldap-2.1.16,
which is the version originally shipped with Conectiva Linux 9.
This announcement updates OpenLDAP for Conectiva Linux 9 to version
2.1.21, which, besides containing the fixes above and several others,
also includes many other improvements in indexes and performance.
SOLUTION
It is recommended that all OpenLDAP users in Conectiva Linux 9 update
their packages. After the upgrade, the slapd service will be
automatically restarted if it was already running.
REFERENCES
1. http://www.openldap.org/
2. http://www.openldap.org/its/index.cgi?findid=2390
3. http://bugzilla.conectiva.com.br/show_bug.cgi?id=8283
4. http://bugzilla.conectiva.com.br/show_bug.cgi?id=8577
UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/9/SRPMS/openldap-2.1.21-31798U90_1cl.src.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-2.1.21-31798U90_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-client-2.1.21-31798U90_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-devel-2.1.21-31798U90_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-devel-static-2.1.21-31798U90_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-doc-2.1.21-31798U90_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/9/RPMS/openldap-server-2.1.21-31798U90_1cl.i386.rpm
ADDITIONAL INSTRUCTIONS
The apt tool can be used to perform RPM packages upgrades:
- run: apt-get update
- after that, execute: apt-get upgrade
Detailed instructions reagarding the use of apt and upgrade examples
can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en
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All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can be
found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en
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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en
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Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com
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