Debian DLA-203-1 : openldap security update

high Nessus Plugin ID 82861
New! Plugin Severity Now Using CVSS v3

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The remote Debian host is missing a security update.


Multiple vulnerabilities were found in OpenLDAP, a free implementation of the Lightweight Directory Access Protocol.

Please carefully check whether you are affected by CVE-2014-9713: if you are, you will need to manually upgrade your configuration! See below for more details on this. Just upgrading the packages might not be enough!


Fix a crash when doing an attrsOnly search of a database configured with both the rwm and translucent overlays.


Michael Vishchers from Seven Principles AG discovered a denial of service vulnerability in slapd, the directory server implementation.
When the server is configured to used the RWM overlay, an attacker can make it crash by unbinding just after connecting, because of an issue with reference counting.


The default Debian configuration of the directory database allows every users to edit their own attributes. When LDAP directories are used for access control, and this is done using user attributes, an authenticated user can leverage this to gain access to unauthorized resources. . Please note this is a Debian specific vulnerability. .
The new package won't use the unsafe access control rule for new databases, but existing configurations won't be automatically modified. Administrators are incited to look at the README.Debian file provided by the updated package if they need to fix the access control rule.


Ryan Tandy discovered a denial of service vulnerability in slapd. When using the deref overlay, providing an empty attribute list in a query makes the daemon crashes.

Thanks to Ryan Tandy for preparing this update.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected packages.

See Also

Plugin Details

Severity: High

ID: 82861

File Name: debian_DLA-203.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/20/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ldap-utils, p-cpe:/a:debian:debian_linux:libldap-2.4-2, p-cpe:/a:debian:debian_linux:libldap-2.4-2-dbg, p-cpe:/a:debian:debian_linux:libldap2-dev, p-cpe:/a:debian:debian_linux:slapd, p-cpe:/a:debian:debian_linux:slapd-dbg, p-cpe:/a:debian:debian_linux:slapd-smbk5pwd, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 4/18/2015