CVE ID:	CVE-2018-6552
Description:	Apport does not properly handle crashes originating from a PID namespace allowing local users to create certain files as root which an attacker could leverage to perform a denial of service via resource exhaustion, possibly gain root privileges, or escape from containers. The is_same_ns() function returns True when /proc// does not exist in order to indicate that the crash should be handled in the global namespace rather than inside of a container. However, the portion of the data/apport code that decides whether or not to forward a crash to a container does not always replace sys.argv[1] with the value stored in the host_pid variable when /proc// does not exist which results in the container pid being used in the global namespace. This flaw affects versions 2.20.8-0ubuntu4 through 2.20.9-0ubuntu7, 2.20.7-0ubuntu3.7, 2.20.7-0ubuntu3.8, 2.20.1-0ubuntu2.15 through 2.20.1-0ubuntu2.17, and 2.14.1-0ubuntu3.28.
Test IDs:	1.3.6.1.4.1.25623.1.0.843543   1.3.6.1.4.1.25623.1.0.843540
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2018-6552 https://usn.ubuntu.com/usn/usn-3664-1 https://usn.ubuntu.com/3664-2/