[USN-5122-2] Apport vulnerability

========================================================================== Ubuntu Security Notice USN-5122-2 October 26, 2021
apport vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 ESM – Ubuntu 14.04 ESM
Apport could be made to create files as the administrator.
Software Description: – apport: automatically generate crash reports for debugging
USN-5122-1 fixed a vulnerability in Apport. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that Apport could be tricked into writing core files as root into arbitrary directories in certain scenarios. A local attacker could possibly use this issue to escalate privileges. On Ubuntu 16.04 ESM This update will cause Apport to generate all core files in the /var/lib/apport/coredump directory. On Ubuntu 14.04 ESM, core file generation has been disabled by default.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 ESM: apport 2.20.1-0ubuntu2.30+esm3 python3-apport 2.20.1-0ubuntu2.30+esm3
Ubuntu 14.04 ESM: apport 2.14.1-0ubuntu3.29+esm9 python3-apport 2.14.1-0ubuntu3.29+esm9
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5122-2 ubuntu.com/security/notices/USN-5122-1 launchpad.net/bugs/1948657