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USN-4634-1: OpenLDAP vulnerabilities

17 November 2020

OpenLDAP could be made to crash if it received specially crafted network traffic.

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Releases

Packages

  • openldap - Lightweight Directory Access Protocol

Details

It was discovered that OpenLDAP incorrectly handled certain malformed
inputs. A remote attacker could possibly use this issue to cause OpenLDAP
to crash, resulting in a denial of service.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-4634-2: slapd-smbk5pwd, slapd, ldap-utils, openldap, libldap2-dev, libldap-2.4-2

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Further reading