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[Launchpad Bug Tracker <1906565@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package apport - 2.20.11-0ubuntu27.14

---------------
apport (2.20.11-0ubuntu27.14) focal; urgency=medium

  * data/apport: only drop supplemental groups if the user is root. (LP:
#1906565)

 -- Brian Murray <brian@xxxxxxxxxx>  Thu, 03 Dec 2020 09:26:27 -0800

** Changed in: apport (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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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 Released
Status in apport source package in Focal:
  Fix Released
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/

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