CVE-2022-32742
Published: 27 July 2022
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).
Notes
Author | Note |
---|---|
mdeslaur | issue only exists in SMB1 Samba versions 4.11.0 and above disable SMB1 by default |
Mitigation
This issue can be mitigated by disabling SMB1, which is the default configuration in Samba 4.11 and above.
Priority
Status
Package | Release | Status |
---|---|---|
samba Launchpad, Ubuntu, Debian |
bionic |
Needed
|
impish |
Ignored
(end of life)
|
|
trusty |
Needs triage
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
focal |
Released
(2:4.13.17~dfsg-0ubuntu1.20.04.1)
|
|
jammy |
Released
(2:4.15.9+dfsg-0ubuntu0.2)
|
|
kinetic |
Released
(2:4.16.4+dfsg-2ubuntu1)
|
|
lunar |
Released
(2:4.16.4+dfsg-2ubuntu1)
|
|
mantic |
Released
(2:4.16.4+dfsg-2ubuntu1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 4.3 |
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 |