Mandriva Linux Security Advisory : openldap (MDVSA-2011:056)

Medium Nessus Plugin ID 53227


The remote Mandriva Linux host is missing one or more security updates.


Multiple vulnerabilities has been identified and fixed in openldap :

chain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server (CVE-2011-1024).

bind.cpp in back-ndb in OpenLDAP 2.4.x before 2.4.24 does not require authentication for the root Distinguished Name (DN), which allows remote attackers to bypass intended access restrictions via an arbitrary password (CVE-2011-1025).

modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service (daemon crash) via a relative Distinguished Name (DN) modification request (aka MODRDN operation) that contains an empty value for the OldDN field (CVE-2011-1081).

The updated packages have been patched to correct these issues.


Update the affected packages.

Plugin Details

Severity: Medium

ID: 53227

File Name: mandriva_MDVSA-2011-056.nasl

Version: $Revision: 1.9 $

Type: local

Published: 2011/03/31

Modified: 2014/07/01

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:lib64ldap2.4_2, p-cpe:/a:mandriva:linux:lib64ldap2.4_2-devel, p-cpe:/a:mandriva:linux:lib64ldap2.4_2-static-devel, p-cpe:/a:mandriva:linux:libldap2.4_2, p-cpe:/a:mandriva:linux:libldap2.4_2-devel, p-cpe:/a:mandriva:linux:libldap2.4_2-static-devel, p-cpe:/a:mandriva:linux:openldap, p-cpe:/a:mandriva:linux:openldap-clients, p-cpe:/a:mandriva:linux:openldap-doc, p-cpe:/a:mandriva:linux:openldap-servers, p-cpe:/a:mandriva:linux:openldap-testprogs, p-cpe:/a:mandriva:linux:openldap-tests, cpe:/o:mandriva:linux:2010.0, cpe:/o:mandriva:linux:2010.1

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2011/03/30

Reference Information

CVE: CVE-2011-1024, CVE-2011-1025, CVE-2011-1081

BID: 46363, 46831

MDVSA: 2011:056