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Vulnerability Details : CVE-2012-2134

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.
Publish Date : 2014-02-26 Last Update Date : 2014-03-10
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 399

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P 2012-04-19 2012-04-24
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- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2012-0683 -- bind-dyndb-ldap security update (important) oval:org.mitre.oval:def:27380 unix
ELSA-2012:0683: bind-dyndb-ldap security update (Important) oval:org.mitre.oval:def:23843 unix
RHSA-2012:0683: bind-dyndb-ldap security update (Important) oval:org.mitre.oval:def:21137 unix
RHSA-2012:0683: bind-dyndb-ldap security update (Important) oval:com.redhat.rhsa:def:20120683 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-2134

# Product Type Vendor Product Version Update Edition Language
1 Application Martin Nagy Bind-dyndb-ldap 0.1.0 A1 Version Details Vulnerabilities
2 Application Martin Nagy Bind-dyndb-ldap 0.1.0 B Version Details Vulnerabilities
3 Application Martin Nagy Bind-dyndb-ldap 0.2.0 Version Details Vulnerabilities
4 Application Martin Nagy Bind-dyndb-ldap 1.0.0 RC1 Version Details Vulnerabilities
5 Application Martin Nagy Bind-dyndb-ldap 1.0.0 B1 Version Details Vulnerabilities
6 Application Martin Nagy Bind-dyndb-ldap 1.1.0 A1 Version Details Vulnerabilities
7 Application Martin Nagy Bind-dyndb-ldap 1.1.0 A2 Version Details Vulnerabilities
8 Application Martin Nagy Bind-dyndb-ldap 1.1.0 B1 Version Details Vulnerabilities
9 Application Martin Nagy Bind-dyndb-ldap 1.1.0 B2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Martin Nagy Bind-dyndb-ldap 9

- References For CVE-2012-2134

http://secunia.com/advisories/48901
SECUNIA 48901
http://www.osvdb.org/81619
OSVDB 81619
http://www.openwall.com/lists/oss-security/2012/04/24/15
MLIST [oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap
https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html
MLIST [Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load
https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=815846 CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-0683.html
REDHAT RHSA-2012:0683

- Metasploit Modules Related To CVE-2012-2134

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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