CVE Database


Impact: Important
Public: 2012-04-24
Bugzilla: 815846: CVE-2012-2134 bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap


The MITRE CVE dictionary describes this issue as:

The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which allows remote attackers to cause a denial of service (infinite loop and named server hang) via a non-alphabet character in the base DN in an LDAP search DNS query.

Find out more about CVE-2012-2134 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 4.3
Base Metrics: AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (bind-dyndb-ldap) RHSA-2012:0683 May 21, 2012

External References


Red Hat would like to thank Ronald van Zantvoort for reporting this issue.

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For clarification or corrections please contact the Red Hat Security Response Team.