Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: apparmor (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1652131
Title:
Putting Apparmor profile usr.lib.dovecot.auth into enforce mode blocks
access to /var/spool/private/auth for Dovecot
Status in AppArmor:
Fix Released
Status in AppArmor 2.10 series:
Fix Released
Status in AppArmor 2.9 series:
Fix Released
Status in apparmor package in Ubuntu:
Confirmed
Bug description:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.10
Release: 16.10
Codename: yakkety
Installing Postfix and Dovecot and setting them up as explained at
https://help.ubuntu.com/lts/serverguide/postfix.html
Then setting all apparmor profiles including Postfix and Dovecot to
enforce mode.
Postfix fails to send a TLS protected email because Dovecot can't
connect to /var/spool/postfix/auth/private because when Dovecot's
apparmor profile is set to enforce mode, apparmor denies Dovecot
access to /var/spool/postfix/auth/private.
Syslog
apparmor="DENIED" operation="connect" profile="/usr/lib/dovecot/auth"
name="/run/dovecot/anvil-auth-penalty" pid=8251 comm="auth" requested_mask="wr"
denied_mask="wr" fsuid=0 ouid=0
apparmor="DENIED" operation="open" profile="/usr/lib/dovecot/auth"
name="/run/dovecot/stats-user" pid=8251 comm="auth" requested_mask="w"
denied_mask="w" fsuid=0 ouid=0
apparmor="DENIED" operation="sendmsg" info="Failed name lookup -
disconnected path" error=-13 profile="/usr/lib/dovecot/log"
name="run/systemd/journal/dev-log" pid=8093 comm="log"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
apparmor="DENIED" operation="sendmsg" info="Failed name lookup -
disconnected path" error=-13 profile="/usr/lib/dovecot/log"
name="run/systemd/journal/dev-log" pid=8093 comm="log"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
apparmor="DENIED" operation="file_perm"
profile="/usr/lib/dovecot/auth" name="/var/spool/postfix/private/auth"
pid=8251 comm="auth" requested_mask="w" denied_mask="w" fsuid=129
ouid=130
apparmor="DENIED" operation="file_perm"
profile="/usr/lib/dovecot/auth" name="/var/spool/postfix/private/auth"
pid=8251 comm="auth" requested_mask="w" denied_mask="w" fsuid=129
ouid=130
Dec 22 10:38:20 frontier postfix/master[1516]: warning: process
/usr/lib/postfix/sbin/smtpd pid 8248 exit status 1
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