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Red Hat: RHSA-2014:0206-01 Moderate: OpenLDAP Denial of Service Issue

red hat
Calendar Grey February 24, 2014
Scroller Redhat
Critical openldap security patch released for Red Hat Enterprise Linux, addressing a potential denial of service vulnerability. Update immediately!
Updated openldap packages that fix one security issue are now available for Red Hat Enterprise Linux 5

Solution

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

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

Summary

OpenLDAP is an open source suite of Lightweight Directory Access Protocol (LDAP) applications and development tools. LDAP is a set of protocols used to access and maintain distributed directory information services over an IP network. The openldap package contains configuration files, libraries, and documentation for OpenLDAP.
A denial of service flaw was found in the way the OpenLDAP server daemon (slapd) performed reference counting when using the rwm (rewrite/remap) overlay. A remote attacker able to query the OpenLDAP server could use this flaw to crash the server by immediately unbinding from the server after sending a search request. (CVE-2013-4449)
Red Hat would like to thank Michael Vishchers from Seven Principles AG for reporting this issue.
All openldap users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory Red Hat software update security fix OpenLDAP Denial of Service Moderate issue

References

https://access.redhat.com/security/cve/CVE-2013-4449 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: compat-openldap-2.3.43_2.2.29-27.el5_10.i386.rpm openldap-2.3.43-27.el5_10.i386.rpm openldap-clients-2.3.43-27.el5_10.i386.rpm openldap-debuginfo-2.3.43-27.el5_10.i386.rpm
x86_64: compat-openldap-2.3.43_2.2.29-27.el5_10.i386.rpm compat-openldap-2.3.43_2.2.29-27.el5_10.x86_64.rpm openldap-2.3.43-27.el5_10.i386.rpm openldap-2.3.43-27.el5_10.x86_64.rpm openldap-clients-2.3.43-27.el5_10.x86_64.rpm openldap-debuginfo-2.3.43-27.el5_10.i386.rpm openldap-debuginfo-2.3.43-27.el5_10.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: openldap-debuginfo-2.3.43-27.el5_10.i386.rpm openldap-devel-2.3.43-27.el5_10.i386.rpm openldap-servers-2.3.43-27.el5_10.i386.rpm openldap-servers-overlays-2.3.43-27.el5_10.i386.rpm openldap-servers-sql-2.3.43-27.el5_10.i386.rpm
x86_64: openldap-debuginfo-2.3.43-27.el5_10.i386.rpm openldap-debuginfo-2.3.43-27.el5_10.x86_64.rpm openldap-devel-2.3.43-27.el5_10.i386.rpm openldap-devel-2.3.43-27.el5_10.x86_64.rpm openldap-servers-2.3.43-27.el5_10.x86_64.rpm openldap-servers-overlays-2.3.43-27.el5_10.x86_64.rpm openldap-servers-sql-2.3.43-27.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: compat-openldap-2.3.43_2.2.29-27.el5_10.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:0206-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0206.html
Issue date: 2014-02-24

Topic

Updated openldap packages that fix one security issue are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having Moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory Red Hat software update security fix OpenLDAP Denial of Service Moderate issue

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

1019490 - CVE-2013-4449 openldap: segfault on certain queries with rwm overlay

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