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 cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module.

From the Ubuntu security team

It was discovered that Kerberos incorrectly handled tagged data. A remote authenticated attacker could possibly use this issue to obtain sensitive information or cause a denial of service.



CVSS 3 base score: 4.7


Package Release Status
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
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.