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CVE-2011-1081

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 201406-36
Posted Jul 1, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201406-36 - Multiple vulnerabilities were found in OpenLDAP, allowing for Denial of Service or a man-in-the-middle attack. Versions less than 2.4.35 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2009-3767, CVE-2010-0211, CVE-2010-0212, CVE-2011-1024, CVE-2011-1025, CVE-2011-1081, CVE-2011-4079, CVE-2012-1164, CVE-2012-2668
MD5 | 3092bbfe191e6220b042b41a35f15871
Ubuntu Security Notice USN-1100-1
Posted Mar 31, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1100-1 - It was discovered that OpenLDAP did not properly check forwarded authentication failures when using a slave server and chain overlay. If OpenLDAP were configured in this manner, an attacker could bypass authentication checks by sending an invalid password to a slave server. It was discovered that OpenLDAP did not properly perform authentication checks to the rootdn when using the back-ndb backend. An attacker could exploit this to access the directory by sending an arbitrary password. Ubuntu does not ship OpenLDAP with back-ndb support by default. This issue did not affect Ubuntu 8.04 LTS. It was discovered that OpenLDAP did not properly validate modrdn requests. An unauthenticated remote user could use this to cause a denial of service via application crash.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2011-1024, CVE-2011-1025, CVE-2011-1081
MD5 | 105acb722cf292813b82a0d12174cf64
Mandriva Linux Security Advisory 2011-056
Posted Mar 30, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-056 - 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 is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server. bind.cpp in back-ndb in OpenLDAP 2.4.x before 2.4.24 does not require authentication for the root Distinguished Name, which allows remote attackers to bypass intended access restrictions via an arbitrary password. modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service via a relative Distinguished Name that contains an empty value for the OldDN field. The updated packages have been patched to correct these issues.

tags | advisory, remote, denial of service, arbitrary, root
systems | linux, mandriva
advisories | CVE-2011-1024, CVE-2011-1025, CVE-2011-1081
MD5 | 163855e28dd547d30ccf2fe21546492e
Mandriva Linux Security Advisory 2011-055
Posted Mar 30, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-055 - 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 is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server. modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service via a relative Distinguished Name that contains an empty value for the OldDN field.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2011-1024, CVE-2011-1081
MD5 | 7e8fa8300fb8a5afdc20cc30018442df
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