/usr/lib/update-notifier/apt_check.py:free(): invalid pointer

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding update-notifier. This problem was most recently seen with package version 3.192.18, the problem page at https://errors.ubuntu.com/problem/3fba55eb7caf6f2b58e7aab7b1c63238547f08fe contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.