🛡️ CVE-2022-0336
🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-276 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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. 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.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-276
Public Exploit ✅ No
Source NVD
Published 2022-08-29
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
fedora — —
samba 4.15.0 4.15.4

References

Issue Tracking, Third Party Advisory https://access.redhat.com/security/cve/CVE-2022-0336
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2046134
Issue Tracking, Patch, Vendor Advisory https://bugzilla.samba.org/show_bug.cgi?id=14950
Issue Tracking, Third Party Advisory https://access.redhat.com/security/cve/CVE-2022-0336
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2046134
Issue Tracking, Patch, Vendor Advisory https://bugzilla.samba.org/show_bug.cgi?id=14950

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