CVE-2016-2118
Published: 12 April 2016
The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."
Notes
| Author | Note |
|---|---|
| mdeslaur | This is known as Badlock |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
samba Launchpad, Ubuntu, Debian |
precise |
Released
(2:3.6.25-0ubuntu0.12.04.2)
|
| trusty |
Released
(2:4.3.8+dfsg-0ubuntu0.14.04.2)
|
|
| upstream |
Released
(4.4.2,4.3.8,4.2.11)
|
|
| wily |
Released
(2:4.3.8+dfsg-0ubuntu0.15.10.2)
|
|
| xenial |
Released
(2:4.3.8+dfsg-0ubuntu1)
|
|
| yakkety |
Released
(2:4.3.8+dfsg-0ubuntu1)
|
|
| zesty |
Released
(2:4.3.8+dfsg-0ubuntu1)
|
|
|
samba4 Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |