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 |