CVE-2018-5730

Published: 06 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

Low

CVSS 3 base score: 3.8

Status

Package Release Status
krb5
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1.16.1-1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(1.16.1-1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.16-2ubuntu0.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1.13.2+dfsg-5ubuntu2.1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1.12+dfsg-2ubuntu5.4)
Binaries built from this source package are in Universe and so are supported by the community.