[Bug 1906565] Update Released

[Łukasz Zemczak]

The verification of the Stable Release Update for apport has completed
successfully and the package is now being released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apport in Ubuntu.
https://bugs.launchpad.net/bugs/1906565

Title:
  traceback when running apport as non-root user

Status in apport package in Ubuntu:
  Fix Released
Status in apport source package in Xenial:
  Fix Committed
Status in apport source package in Bionic:
  Fix Committed
Status in apport source package in Focal:
  Fix Committed
Status in apport source package in Groovy:
  Fix Released

Bug description:
  [Impact]
  The apport-test-crashes package, which is used to test the Error Tracker deployments, fails produce crash files for binary applications since "various security hardening fixes" were included in apport. The problematic change is the dropping of supplemental groups in data/apport. This results in a PermissionError as it is not the root user who is calling /usr/share/apport/apport.

  [Test Case]
  The least convulted test case involves using the generate-sigsegv-crash.py script from apport-test-crashes. This ends up using a command similar to '/usr/share/apport/apport -p 4077 -s 11 -E /usr/bin/gnome-calculator < /tmp/20.10-gnome-calculator.core' which then will encounter the Traceback.

  1) Comment out "check_lock()" in /usr/share/apport/apport (This is necessary as we are not running as root)
  2) Put a copy of generate-sigsegv-crash.py on disk.
  3) Run 'python3 /tmp/generate-sigsegv-crash.py cat'
  4) Observe the following Traceback:

  Traceback (most recent call last):
    File "/tmp/tmpvkt5d266/apport", line 599, in <module>
      drop_privileges(True)
    File "/tmp/tmpvkt5d266/apport", line 125, in drop_privileges
      os.setgroups([])
  PermissionError: [Errno 1] Operation not permitted

  With the version of apport from -proposed you'll receive no such
  Traceback.

  [Regression Potential]
  If there is an error in the python code we code see a new traceback for any and all crashes being generated, so ensure regular crash generation works too.

  apport-test-crashes code is here:
  https://code.launchpad.net/~daisy-pluckers/error-tracker-deployment/test-crashes/

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1906565/+subscriptions