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Last updated: 10/25/2014 8:28:55 PM

CVE Publication rate: 51.03

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National Cyber Awareness System

Vulnerability Summary for CVE-2012-2134

Original release date: 02/26/2014
Last revised: 03/10/2014
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: MLIST
Name: [oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=815846
External Source: MLIST
Name: [Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load
External Source: OSVDB
Name: 81619
External Source: REDHAT
Name: RHSA-2012:0683
Type: Patch Information
External Source: SECUNIA
Name: 48901
Type: Advisory
External Source: CONFIRM
Name: https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)