cmd5checkpw 0.21 and earlier allows remote attackers to cause a denial of service via an "SMTP AUTH" command with an unknown username.
7.2AI Score
0.008EPSS
cmd5checkpw, when running setuid, does not properly drop privileges before calling the execvp function, which allows local users to read the poppasswd file.
6.1AI Score
0.0004EPSS