Ubuntu 20.10: 4622-1 Critical OpenLDAP Denial Of Service Issue

ubuntu

November 9, 2020

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

Summary

OpenLDAP could be made to crash or run programs if it received

specially crafted network traffic.

Software Description:

- openldap: Lightweight Directory Access Protocol

Details:

It was discovered that OpenLDAP incorrectly handled certain network

packets. A remote attacker could use this issue to cause OpenLDAP to crash,

resulting in a denial of service, or possibly execute arbitrary code.

Topics Covered

security advisory denial of service remote code execution Ubuntu OpenLDAP

Update Instructions

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

Ubuntu 20.10:
  slapd                           2.4.53+dfsg-1ubuntu1.1

Ubuntu 20.04 LTS:
  slapd                           2.4.49+dfsg-2ubuntu1.4

Ubuntu 18.04 LTS:
  slapd                           2.4.45+dfsg-1ubuntu1.7

Ubuntu 16.04 LTS:
  slapd                           2.4.42+dfsg-2ubuntu3.10

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