USN-4352-1: OpenLDAP vulnerability

USN-4352-1: OpenLDAP vulnerability

openldap vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 20.04 LTS
• Ubuntu 19.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

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

Software Description

• 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.

Update instructions

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

Ubuntu 20.04 LTS

slapd – 2.4.49+dfsg-2ubuntu1.2

Ubuntu 19.10

slapd – 2.4.48+dfsg-1ubuntu1.1

Ubuntu 18.04 LTS

slapd – 2.4.45+dfsg-1ubuntu1.5

Ubuntu 16.04 LTS

slapd – 2.4.42+dfsg-2ubuntu3.8

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2020-12243

Source: USN-4352-1: OpenLDAP vulnerability