[USN-6616-1] OpenLDAP vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-6616-1
January 30, 2024

openldap vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

OpenLDAP could be made to crash if it received specially crafted input.

Software Description:
- openldap: Lightweight Directory Access Protocol

Details:

It was discovered that OpenLDAP was not properly performing bounds checks
when executing functions related to LDAP URLs. An attacker could possibly
use this issue to cause a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
   slapd                           2.5.16+dfsg-0ubuntu0.22.04.2

Ubuntu 20.04 LTS:
   slapd                           2.4.49+dfsg-2ubuntu1.10

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6616-1
   CVE-2023-2953

Package Information:
   https://launchpad.net/ubuntu/+source/openldap/2.5.16+dfsg-0ubuntu0.22.04.2
   https://launchpad.net/ubuntu/+source/openldap/2.4.49+dfsg-2ubuntu1.10

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