USN-4315-1: Apport vulnerabilities

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

• CVE-2020-8831
• CVE-2020-8833

Source: USN-4315-1: Apport vulnerabilities