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 d...
Original description
The description as published by the source.
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. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2022-0336 samba Fixed in: 4.15.12-r0
- Debian DEBIAN-CVE-2022-0336 samba Fixed in: 2:4.13.13+dfsg-1~deb11u3
References
- advisory github.com
- advisory nvd.nist.gov
- advisory security.gentoo.org
- patch github.com
- patch github.com
- report bugzilla.redhat.com
- report bugzilla.samba.org
- web access.redhat.com
- web samba.org