CVE-2012-2134

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-02-26 · updated 2026-06-16
Weakness: CWE-399

Description

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.

Affected products

Martin Nagy Bind-Dyndb-Ldap: through 1.1.0; 0.1.0-a1, 0.1.0-b, 0.2.0, 1.0.0-b1, 1.0.0-rc1, 1.1.0-a1 (+2)

References

http://rhn.redhat.com/errata/RHSA-2012-0683.html
http://secunia.com/advisories/48901
http://www.openwall.com/lists/oss-security/2012/04/24/15
http://www.osvdb.org/81619
https://bugzilla.redhat.com/show_bug.cgi?id=815846
https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS
https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html
http://rhn.redhat.com/errata/RHSA-2012-0683.html
http://secunia.com/advisories/48901
http://www.openwall.com/lists/oss-security/2012/04/24/15
http://www.osvdb.org/81619
https://bugzilla.redhat.com/show_bug.cgi?id=815846

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