CVE-2022-37966

Publication date 9 November 2022

Last updated 19 September 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability

Read the notes from the security team

Status

Package Ubuntu Release Status
samba 25.04 plucky
Fixed 2:4.17.5+dfsg-2ubuntu1
24.10 oracular
Fixed 2:4.17.5+dfsg-2ubuntu1
24.04 LTS noble
Fixed 2:4.17.5+dfsg-2ubuntu1
23.10 mantic
Fixed 2:4.17.5+dfsg-2ubuntu1
23.04 lunar
Fixed 2:4.17.5+dfsg-2ubuntu1
22.10 kinetic
Fixed 2:4.16.8+dfsg-0ubuntu1
22.04 LTS jammy
Fixed 2:4.15.13+dfsg-0ubuntu1
20.04 LTS focal
Fixed 2:4.15.13+dfsg-0ubuntu0.20.04.1
18.04 LTS bionic Ignored see notes
16.04 LTS xenial Ignored see notes
14.04 LTS trusty
Vulnerable

Notes

mdeslaur

commits come after CVE-2022-38023 and CVE-2022-45141 The focal samba update was temporarily reverted by USN 5822-2 because it introduced regressions. It was later updated again with USN 5936-1.

leosilva

The proposed fixes require substantial architectural changes that are beyond what is possible with the old samba codebase in bionic and earlier releases. It is also unfeasible to update the samba package due to dependency constraints. As such, we will not be releasing updates for this issue, and marking the entries as ignored. As a mitigation alternative, we recommend that customers running samba on these releases to properly firewall samba connections from trusted machines only.

Severity score breakdown

Parameter Value
Base score 8.1 · High
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references