Public bug reported:
Binary package hint: libpam-runtime
Working with libpam-runtime 1.0.1-4ubuntu5 in intrepid.
I've put together a profile for pam-auth-update to use. For some reason,
it doesn't like the session-related fields I have, despite them
appearing to be well-formed. Attached is a (somewhat) minimal example
that triggers the bug.
When I run pam-auth-update to enable the new profile, I get this mess
(after returning from the debconf dialog):
# pam-auth-update
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 237,
<INPUT> line 23.
Use of uninitialized value $modline in substitution (s///) at
/usr/sbin/pam-auth-update line 239, <INPUT> line 23.
Use of uninitialized value $mod in substitution (s///) at
/usr/sbin/pam-auth-update line 242, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 243, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 244, <INPUT> line 23.
Use of uninitialized value $modline in concatenation (.) or string at
/usr/sbin/pam-auth-update line 258, <INPUT> line 23.
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 237,
<INPUT> line 23.
Use of uninitialized value $modline in substitution (s///) at
/usr/sbin/pam-auth-update line 239, <INPUT> line 23.
Use of uninitialized value $mod in substitution (s///) at
/usr/sbin/pam-auth-update line 242, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 243, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 244, <INPUT> line 23.
Use of uninitialized value $modline in concatenation (.) or string at
/usr/sbin/pam-auth-update line 258, <INPUT> line 23.
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 237,
<INPUT> line 23.
Use of uninitialized value $modline in substitution (s///) at
/usr/sbin/pam-auth-update line 239, <INPUT> line 23.
Use of uninitialized value $mod in substitution (s///) at
/usr/sbin/pam-auth-update line 242, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 243, <INPUT> line 23.
Use of uninitialized value $mod in hash element at /usr/sbin/pam-auth-update
line 244, <INPUT> line 23.
Use of uninitialized value $modline in concatenation (.) or string at
/usr/sbin/pam-auth-update line 258, <INPUT> line 23.
Unfortunately, /etc/pam.d/common-session turns out incorrectly
generated. Here is the last part of the file, after the above operation:
# and here are more per-package modules (the "Additional" block)
session required pam_unix.so
session optional pam_krb5.so minimum_uid=20000
session
session
session
# end of pam-auth-update config
Then, when I go to disable the profile, the below comes up just before
the debconf dialog:
# pam-auth-update
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 607,
<CURRENT> line 26.
Use of uninitialized value $curmod in quotemeta at /usr/sbin/pam-auth-update
line 615, <CURRENT> line 26.
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 607,
<CURRENT> line 27.
Use of uninitialized value $curmod in quotemeta at /usr/sbin/pam-auth-update
line 615, <CURRENT> line 27.
Use of uninitialized value $3 in split at /usr/sbin/pam-auth-update line 607,
<CURRENT> line 28.
Use of uninitialized value $curmod in quotemeta at /usr/sbin/pam-auth-update
line 615, <CURRENT> line 28.
** Affects: pam (Ubuntu)
Importance: Undecided
Status: New
--
pam-auth-update does not correctly process a valid profile file
https://bugs.launchpad.net/bugs/295441
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