Scientific Linux Security Update : bind-dyndb-ldap on SL6.x i386/x86_64 (20120521)

medium Nessus Plugin ID 61314

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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.

Solution

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

Plugin Details

Severity: Medium

ID: 61314

File Name: sl_20120521_bind_dyndb_ldap_on_SL6_x.nasl

Version: 1.7

Type: local

Agent: unix

Family: Scientific Linux Local Security Checks

Published: 8/1/2012

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:bind-dyndb-ldap, p-cpe:/a:fermilab:scientific_linux:bind-dyndb-ldap-debuginfo, x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 5/21/2012

Vulnerability Publication Date: 2/26/2014

Reference Information

CVE: CVE-2012-2134

Detections

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