Related Vulnerabilities: CVE-2022-0336  

The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain.

Severity Medium

Remote No

Type Access restriction bypass

Description

The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain.

AVG-2648 samba 4.15.4-1 4.15.5-1 Critical Fixed

https://www.samba.org/samba/security/CVE-2022-0336.html