USN-4315-2: Apport vulnerabilities

15 June 2020

Several security issues were fixed in Apport.



  • apport - automatically generate crash reports for debugging


USN-4315-1 fixed several vulnerabilities in Apport. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Maximilien Bourgeteau discovered that the Apport lock file was created with
insecure permissions. This could allow a local attacker to escalate their
privileges via a symlink attack. (CVE-2020-8831)

Maximilien Bourgeteau discovered a race condition in Apport when setting
crash report permissions. This could allow a local attacker to read
arbitrary files via a symlink attack. (CVE-2020-8833)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

In general, a standard system update will make all the necessary changes.