USN-4078-1: OpenLDAP vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• openldap - OpenLDAP utilities

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 19.04

• slapd - 2.4.47+dfsg-3ubuntu2.1

Ubuntu 18.04

• slapd - 2.4.45+dfsg-1ubuntu1.3

Ubuntu 16.04

• slapd - 2.4.42+dfsg-2ubuntu3.6

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

References

• CVE-2019-13057
• CVE-2019-13565

Related notices

• USN-4078-2: libldap-2.4-2, openldap, slapd-smbk5pwd, ldap-utils, slapd, libldap2-dev