Ubuntu 5959-1: Kerberos vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: krb5-k5tls 1.17-6ubuntu4.3 krb5-kdc 1.17-6ubuntu4.3 krb5-kdc-ldap 1.17-6ubuntu4.3 krb5-pkinit 1.17-6ubuntu4.3 Ubuntu 18.04 LTS: krb5-k5tls 1.16-2ubuntu0.4 krb5-kdc 1.16-2ubuntu0.4 krb5-kdc-ldap 1.16-2ubuntu0.4 krb5-pkinit 1.16-2ubuntu0.4 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-5959-1
CVE-2021-36222, CVE-2021-37750
Package Information
https://launchpad.net/ubuntu/+source/krb5/1.17-6ubuntu4.3 https://launchpad.net/ubuntu/+source/krb5/1.16-2ubuntu0.4