CVE-2012-2134

Severity

43%

Complexity

86%

Confidentiality

48%

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.

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.

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P).

Overview

Type

Martin Nagy bind-dyndb-ldap

First reported 10 years ago

2014-02-26 15:55:00

Last updated 10 years ago

2014-03-10 19:18:00

Affected Software

Martin Nagy bind-dyndb-ldap 0.1.0a1

0.1.0

Martin Nagy bind-dyndb-ldap 0.1.0b

0.1.0

Martin Nagy bind-dyndb-ldap 0.2.0

0.2.0

Martin Nagy bind-dyndb-ldap 1.0.0b1

1.0.0

Martin Nagy bind-dyndb-ldap 1.0.0 release candidate 1

1.0.0

Martin Nagy bind-dyndb-ldap 1.1.0a1

1.1.0

Martin Nagy bind-dyndb-ldap 1.1.0a2

1.1.0

Martin Nagy bind-dyndb-ldap 1.1.0b1

1.1.0

References

RHSA-2012:0683

Patch

48901

Vendor Advisory

[oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap

81619

https://bugzilla.redhat.com/show_bug.cgi?id=815846

https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS

[Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load

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