USN-384-1: OpenLDAP vulnerability

21 November 2006

openldap2.2 vulnerability

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

  • Ubuntu 6.10
  • Ubuntu 6.06 LTS
  • Ubuntu 5.10

Software Description


Evgeny Legerov discovered that the OpenLDAP libraries did not correctly truncate authcid names. This situation would trigger an assert and abort the program using the libraries. A remote attacker could send specially crafted bind requests that would lead to an LDAP server denial of service.

Update instructions

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

Ubuntu 6.10
libldap-2.2-7 - 2.2.26-5ubuntu3.1
Ubuntu 6.06 LTS
libldap-2.2-7 - 2.2.26-5ubuntu2.2
Ubuntu 5.10
libldap-2.2-7 - 2.2.26-3ubuntu0.2

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.