USN-4315-1: Apport vulnerabilities
apport vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary
Several security issues were fixed in Apport.
Software Description
- apport – automatically generate crash reports for debugging
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 19.10
- apport – 2.20.11-0ubuntu8.8
- python-apport – 2.20.11-0ubuntu8.8
- python3-apport – 2.20.11-0ubuntu8.8
- Ubuntu 18.04 LTS
- apport – 2.20.9-0ubuntu7.14
- python-apport – 2.20.9-0ubuntu7.14
- python3-apport – 2.20.9-0ubuntu7.14
- Ubuntu 16.04 LTS
- apport – 2.20.1-0ubuntu2.23
- python-apport – 2.20.1-0ubuntu2.23
- python3-apport – 2.20.1-0ubuntu2.23
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4315-1: Apport vulnerabilities
