[USN-5122-2] Apport vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Tue Oct 26 14:55:08 UTC 2021
==========================================================================
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
Summary:
Apport could be made to create files as the administrator.
Software Description:
- 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 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:
https://ubuntu.com/security/notices/USN-5122-2
https://ubuntu.com/security/notices/USN-5122-1
https://launchpad.net/bugs/1948657
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