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Ubuntu 22.04 And 20.04: USN-6616-1 Critical OpenLDAP Denial Of Service

ubuntu
Calendar Grey January 30, 2024
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-6617-1 highlights a vulnerability in the OpenSSH package that affects both Ubuntu 22.04 and 20.04 LTS installations.
OpenLDAP could be made to crash if it received specially crafted input.

Summary

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

Software Description:

- openldap: Lightweight Directory Access Protocol

Details:

It was discovered that OpenLDAP was not properly performing bounds checks

when executing functions related to LDAP URLs. An attacker could possibly

use this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical openldap ubuntu

Update Instructions

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

Ubuntu 22.04 LTS:
   slapd                           2.5.16+dfsg-0ubuntu0.22.04.2

Ubuntu 20.04 LTS:
   slapd                           2.4.49+dfsg-2ubuntu1.10

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

References

https://ubuntu.com/security/notices/USN-6616-1

CVE-2023-2953

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6616-1

Topics%20covered

Topics Covered

security advisory denial of service critical openldap ubuntu

Package Information

https://launchpad.net/ubuntu/+source/openldap/2.5.16+dfsg-0ubuntu0.22.04.2
https://launchpad.net/ubuntu/+source/openldap/2.4.49+dfsg-2ubuntu1.10

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