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Ubuntu 19.04, 18.04 LTS, 16.04 LTS: USN-4078-1 OpenLDAP Threats

ubuntu
Calendar Grey July 30, 2019
Dist Ubuntu Esm H88
Vulnerabilities in OpenLDAP patched for Ubuntu 20.04, 18.10, and 16.10 as of August 15, 2021.
Several security issues were fixed in OpenLDAP.

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)

Topics%20covered

Topics Covered

security advisory access control Ubuntu openldap authentication issue resolution

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://ubuntu.com/security/notices/USN-4078-1

CVE-2019-13057, CVE-2019-13565

Severity
critical
Lowest
Low
Medium
High
Critical

July 30, 2019

Topics%20covered

Topics Covered

security advisory access control Ubuntu openldap authentication issue resolution

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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