USN-3664-1: Apport vulnerability

30 May 2018

apport vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS
  • Ubuntu 17.10
  • Ubuntu 16.04 LTS

Summary

Apport could be tricked into causing a denial of service or escalate privileges.

Software Description

  • apport - automatically generate crash reports for debugging

Details

Sander Bos discovered that Apport incorrectly handled core dumps when certain files are missing from /proc. A local attacker could possibly use this issue to cause a denial of service, gain root privileges, or escape from containers.

Update instructions

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

Ubuntu 18.04 LTS
apport - 2.20.9-0ubuntu7.1
Ubuntu 17.10
apport - 2.20.7-0ubuntu3.9
Ubuntu 16.04 LTS
apport - 2.20.1-0ubuntu2.18

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