** Description changed:
[Impact]
- Various AppArmor messages aren't handled by logwatch, and thus end up in the
"Unmatched Entries" section. Some of these are noteworthy, others are
innocuous, but given the quantity and variety of them, they can clutter the
log. Common ones should be either ignored or matched and summarized, as
appropriate.
+
+ Various AppArmor messages aren't handled by logwatch, and thus end up in
+ the "Unmatched Entries" section. Some of these are noteworthy, others
+ are innocuous, but given the quantity and variety of them, they can
+ clutter the log. Common ones should be either ignored or matched and
+ summarized, as appropriate.
[Test Case]
$ export CODENAME="focal"
$ lxc launch ubuntu:${CODENAME} test-logwatch
$ lxc exec test-logwatch -- bash
# apt-get update
# apt-get dist-upgrade -y
# apt-get install -y logwatch
# wget
https://bugs.launchpad.net/ubuntu/+source/logwatch/+bug/1577948/+attachment/5407058/+files/unmatched-entries-apparmor%3Akern.log
# cat unmatched-entries-apparmor:kern.log >> /var/log/kern.log
# logwatch --detail High --service all --range all --output stdout
Without the fix, there will be unmatched entries shown for
apparmor="STATUS" ... profile="unconfined"; with the fix they won't
display.
(Note: For testing it's not really necessary to trigger the original
condition that produces the log entry, since for Logwatch the purpose is
more about making sure the entry is detected and processed
appropriately.)
[Regression Potential]
Since logwatch filters logs for errors pertinent to administrators,
standard things to watch out for are undesired changes in this filtering
behavior, such as flagging or failing to flag issues differently than
before, other than the specific messages being filtered with this
change.
[Fix]
[Discussion]
[Original Report]
Under the "Kernel Audit" heading, the following apparmor lines appear as
unmatched:
**Unmatched Entries**
audit: type=1400 audit(1462209116.753:18): apparmor="STATUS"
operation="profile_replace" profile="unconfined" name="/usr/sbin/named"
pid=22094 comm="apparmor_parser"
audit: type=1400 audit(1462209262.641:2): apparmor="STATUS"
operation="profile_load" profile="unconfined" name="/usr/bin/freshclam"
pid=1760 comm="apparmor_parser"
audit: type=1400 audit(1462209262.657:3): apparmor="STATUS"
operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=1759
comm="apparmor_parser"
audit: type=1400 audit(1462209262.657:4): apparmor="STATUS"
operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1759
comm="apparmor_parser"
audit: type=1400 audit(1462209262.657:5): apparmor="STATUS"
operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=1759 comm="apparmor_parser"
audit: type=1400 audit(1462209262.657:6): apparmor="STATUS"
operation="profile_load" profile="unconfined"
name="/usr/lib/connman/scripts/dhclient-script" pid=1759 comm="apparmor_parser"
audit: type=1400 audit(1462209262.657:7): apparmor="STATUS"
operation="profile_load" profile="unconfined" name="/usr/sbin/clamd" pid=1765
comm="apparmor_parser"
audit: type=1400 audit(1462209262.673:8): apparmor="STATUS"
operation="profile_load" profile="unconfined" name="/usr/sbin/cups-browsed"
pid=1767 comm="apparmor_parser"
audit: type=1400 audit(1462209262.677:9): apparmor="STATUS"
operation="profile_load" profile="unconfined"
name="/usr/lib/cups/backend/cups-pdf" pid=1768 comm="apparmor_parser"
audit: type=1400 audit(1462209262.677:10): apparmor="STATUS"
operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd" pid=1768
comm="apparmor_parser"
audit: type=1400 audit(1462209262.677:11): apparmor="STATUS"
operation="profile_load" profile="unconfined"
name="/usr/sbin/cupsd//third_party" pid=1768 comm="apparmor_parser"
-----------------------------------------------------------------
Description: Ubuntu 16.04 LTS
Release: 16.04
logwatch:
Installed: 7.4.2-1ubuntu1
Candidate: 7.4.2-1ubuntu1
Version table:
*** 7.4.2-1ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/bugs/1577948
Title:
unmatched entries for apparmor STATUS messages
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