CVE-2018-5730
Published: 6 March 2018
MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a "linkdn" and "containerdn" database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN.
From the Ubuntu Security Team
It was discovered that Kerberos incorrectly handled certain database arguments. A remote authenticated attacker could possibly use this issue to obtain sensitive information.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
krb5 Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Released
(1.16-2ubuntu0.1)
|
|
| cosmic |
Released
(1.16-2ubuntu1.1)
|
|
| disco |
Not vulnerable
(1.16.1-1)
|
|
| eoan |
Not vulnerable
(1.16.1-1)
|
|
| focal |
Not vulnerable
(1.16.1-1)
|
|
| groovy |
Not vulnerable
(1.16.1-1)
|
|
| hirsute |
Not vulnerable
(1.16.1-1)
|
|
| trusty |
Released
(1.12+dfsg-2ubuntu5.4)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(1.13.2+dfsg-5ubuntu2.1)
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |