CVE-2017-12150
Publication date 20 September 2017
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| samba | ||
| 16.04 LTS xenial |
Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.11
|
|
| 14.04 LTS trusty |
Fixed 2:4.3.11+dfsg-0ubuntu0.14.04.12
|
Patch details
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-3426-2
- Samba vulnerabilities
- 2 November 2017
- USN-3426-1
- Samba vulnerabilities
- 21 September 2017