PAM on Solaris

[Hans Werner Strube]

When openssh-2.9.9p2 is configured with PAM on Solaris 7 (using the
system's default /etc/pam.conf) the passwd authentication works:
 debug1: PAM Password authentication accepted for user "strube"
 ...
 debug1: PAM setting tty to "/dev/pts/1"
 debug1: PAM establishing creds
but on logout a message is seen:
 debug1: Cannot delete credentials[7]: Permission denied

Why does this occur? Does it have adverse effects (e.g., credentials
accumulating, memory leak etc.)? How can it be avoided?