USN-4078-2: OpenLDAP vulnerabilities

19 August 2019

openldap vulnerabilities

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

  • Ubuntu 14.04 ESM
  • Ubuntu 12.04 ESM


Several security issues were fixed in OpenLDAP.

Software Description

  • openldap - OpenLDAP utilities


USN-4078-1 fixed several vulnerabilities in openldap. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that OpenLDAP incorrectly handled rootDN delegation. A database administrator could use this issue to request authorization as an identity from another database, contrary to expectations. (CVE-2019-13057)

It was discovered that OpenLDAP incorrectly handled SASL authentication and session encryption. After a first SASL bind was completed, it was possible to obtain access by performing simple binds, contrary to expectations. (CVE-2019-13565)

Update instructions

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

Ubuntu 14.04 ESM
slapd - 2.4.31-1+nmu2ubuntu8.5+esm1
Ubuntu 12.04 ESM
slapd - 2.4.28-1.1ubuntu4.9

To update your system, please follow these instructions:

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