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Ubuntu Security Notice USN-4078-1
July 30, 2019
openldap vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in OpenLDAP.
Software Description:
– 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 LTS:
slapd 2.4.45+dfsg-1ubuntu1.3
Ubuntu 16.04 LTS:
slapd 2.4.42+dfsg-2ubuntu3.6
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4078-1
CVE-2019-13057, CVE-2019-13565
Package Information:
https://launchpad.net/ubuntu/+source/openldap/2.4.47+dfsg-3ubuntu2.1
https://launchpad.net/ubuntu/+source/openldap/2.4.45+dfsg-1ubuntu1.3
https://launchpad.net/ubuntu/+source/openldap/2.4.42+dfsg-2ubuntu3.6
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