USN-5122-2: Apport vulnerability
26 October 2021
Apport could be made to create files as the administrator.
Releases
Packages
- apport - automatically generate crash reports for debugging
Details
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
-
apport
-
2.20.1-0ubuntu2.30+esm3
Available with Ubuntu Pro
-
python3-apport
-
2.20.1-0ubuntu2.30+esm3
Available with Ubuntu Pro
Ubuntu 14.04
-
apport
-
2.14.1-0ubuntu3.29+esm9
Available with Ubuntu Pro
-
python3-apport
-
2.14.1-0ubuntu3.29+esm9
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.