CVE-2018-16860
Published: 14 May 2019
A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
samba Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| xenial |
Released
(2:4.3.11+dfsg-0ubuntu0.16.04.20)
|
|
| bionic |
Released
(2:4.7.6+dfsg~ubuntu-0ubuntu2.10)
|
|
| cosmic |
Released
(2:4.8.4+dfsg-2ubuntu2.4)
|
|
| disco |
Released
(2:4.10.0+dfsg-0ubuntu2.1)
|
|
| focal |
Released
(2:4.10.0+dfsg-0ubuntu2.1)
|
|
| jammy |
Released
(2:4.10.0+dfsg-0ubuntu2.1)
|
|
| kinetic |
Released
(2:4.10.0+dfsg-0ubuntu2.1)
|
|
|
heimdal Launchpad, Ubuntu, Debian |
cosmic |
Ignored
(end of life)
|
| bionic |
Released
(7.5.0+dfsg-1ubuntu0.1)
|
|
| kinetic |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| focal |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| groovy |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| hirsute |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| impish |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| jammy |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| trusty |
Released
(1.6~git20131207+dfsg-1ubuntu1.2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(7.6, 7.5.0+dfsg-3, 7.1.0+dfsg-13+deb9u3)
|
|
| xenial |
Released
(1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/heimdal/heimdal/commit/c6257cc2c842c0faaeb4ef34e33890ee88c4cbba |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |