1. Ubuntu Security Notices
  2. USN-4352-1

USN-4352-1: OpenLDAP vulnerability

Publication date

6 May 2020

Overview

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

Releases

Packages

  • openldap - Lightweight Directory Access Protocol

Details

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

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

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.04 focal slapd –  2.4.49+dfsg-2ubuntu1.2
19.10 eoan slapd –  2.4.48+dfsg-1ubuntu1.1
18.04 bionic slapd –  2.4.45+dfsg-1ubuntu1.5
16.04 xenial slapd –  2.4.42+dfsg-2ubuntu3.8

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References

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