Scientific Linux Security Update : bind-dyndb-ldap on SL6.x i386/x86_64

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

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)

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.

See also :

http://www.nessus.org/u?e15383ea

Solution :

Update the affected bind-dyndb-ldap and / or bind-dyndb-ldap-debuginfo
packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61314 ()

Bugtraq ID:

CVE ID: CVE-2012-2134