ID de Prueba:	1.3.6.1.4.1.25623.1.0.71325
Categoría:	Red Hat Local Security Checks
Título:	RedHat Security Advisory RHSA-2012:0683
Resumen:	NOSUMMARY
Descripción:	Description: The remote host is missing updates announced in advisory RHSA-2012:0683. The dynamic LDAP back end is a plug-in for BIND that provides back-end capabilities to LDAP databases. It features support for dynamic updates and internal caching that help to reduce the load on LDAP servers. A flaw was found in the way bind-dyndb-ldap handled LDAP query errors. If a remote attacker were able to send DNS queries to a named server that is configured to use bind-dyndb-ldap, they could trigger such an error with a DNS query leveraging bind-dyndb-ldap's insufficient escaping of the LDAP base DN (distinguished name). This would result in an invalid LDAP query that named would retry in a loop, preventing it from responding to other DNS queries. With this update, bind-dyndb-ldap only attempts to retry one time when an LDAP search returns an unexpected error. (CVE-2012-2134) Red Hat would like to thank Ronald van Zantvoort for reporting this issue. All bind-dyndb-ldap users should upgrade to this updated package, which contains a backported patch to correct this issue. For the update to take effect, the named service must be restarted. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2012-0683.html Risk factor : High
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2012-2134 48901 http://secunia.com/advisories/48901 81619 http://www.osvdb.org/81619 RHSA-2012:0683 http://rhn.redhat.com/errata/RHSA-2012-0683.html [Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html [oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap http://www.openwall.com/lists/oss-security/2012/04/24/15 https://bugzilla.redhat.com/show_bug.cgi?id=815846 https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS
Copyright	Copyright (c) 2012 E-Soft Inc. http://www.securityspace.com

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