Noteworthy changes in Linux-PAM 1.5.1

• pam_unix: fixed CVE-2020-27780 - authentication bypass when a user
  doesn't exist and root password is blank
• pam_faillock: added nodelay option to not set pam_fail_delay
• pam_wheel: use pam_modutil_user_in_group to check for the group membership
  with getgrouplist where it is available

Downloads

Please ignore so called "Source code" links provided by github, they are useless.