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USN-5424-2: OpenLDAP vulnerability

19 May 2022

OpenLDAP could be made to perform arbitrary modifications to the database.



  • openldap - Lightweight Directory Access Protocol


USN-5424-1 fixed a vulnerability in OpenLDAP. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that OpenLDAP incorrectly handled certain SQL statements
within LDAP queries in the experimental back-sql backend. A remote attacker
could possibly use this issue to perform an SQL injection attack and alter
the database.

Update instructions

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

Ubuntu 16.04
Ubuntu 14.04

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


Related notices

  • USN-5424-1: ldap-utils, libldap-2.4-2, slapd-contrib, libldap-dev, libldap2-dev, libldap-common, libldap-2.5-0, slapd-smbk5pwd, slapi-dev, openldap, slapd