Heimdal 7.4 KDC kdc/kerberos5.c der_length_visible_string UDP Packet denial of service

A vulnerability, which was classified as problematic, was found in Heimdal 7.4. Affected is the function der_length_visible_string in the library lib/asn1/der_length.c of the file kdc/kerberos5.c of the component KDC. Upgrading eliminates this vulnerability. A possible mitigation has been published 6 days after the disclosure of the vulnerability.