CVE-2022-32742

Publication date 27 July 2022

Last updated 18 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.3 · Medium

Score breakdown

Description

A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).

Read the notes from the security team

Mitigation

This issue can be mitigated by disabling SMB1, which is the default configuration in Samba 4.11 and above.

Status

Package Ubuntu Release Status
samba 25.10 questing
Fixed 2:4.16.4+dfsg-2ubuntu1
25.04 plucky
Fixed 2:4.16.4+dfsg-2ubuntu1
24.10 oracular
Fixed 2:4.16.4+dfsg-2ubuntu1
24.04 LTS noble
Fixed 2:4.16.4+dfsg-2ubuntu1
23.10 mantic
Fixed 2:4.16.4+dfsg-2ubuntu1
23.04 lunar
Fixed 2:4.16.4+dfsg-2ubuntu1
22.10 kinetic
Fixed 2:4.16.4+dfsg-2ubuntu1
22.04 LTS jammy
Fixed 2:4.15.9+dfsg-0ubuntu0.2
21.10 impish Ignored end of life
20.04 LTS focal
Fixed 2:4.13.17~dfsg-0ubuntu1.20.04.1
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Notes

mdeslaur

issue only exists in SMB1 Samba versions 4.11.0 and above disable SMB1 by default

Severity score breakdown

Parameter Value
Base score 4.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

Other references