Bug#980974: apparmor blocks cups backend outgoing network connections

[Brian Potkin <claremont102@gmail.com>]

On Mon 25 Jan 2021 at 23:21:20 +0000, Brian Potkin wrote:

[...]

> Triaging this report, Chris, but my knowledge of apparmor is very
> limited. However, I have a minimal unstable installation (base
> system plus only cups) and can reproduce this behaviour. The last
> line (but not the first) disappears when cups-browsed is purged.

JFTR. Regarding the apparmor profile and cups-browsed, there is
Ubuntu bug #1897369:

 https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1897369

Till Kamppeter (the author of cups-browsed) says

  I did not have anything to control the priority in the source code
  of cups-browsed, I also did not find anything in the packaging of
  cups-filters. I also do not see any security risk in priority
  changing, it can only make the system faster or slower.

Then there is Debian bug #1016622:

 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1016622

which basically says - don't worry about it. Perhaps it could be the
same situation for cupsd.

Cheers,

Brian.