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
|
| focal |
Released
(2:4.13.17~dfsg-0ubuntu1.20.04.1)
|
|
| impish |
Ignored
(reached end-of-life)
|
|
| 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)
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
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 |