CVE-2018-6552
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
31/05/2018
Last modified:
03/10/2019
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.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH
Base Score 2.0
7.20
Severity 2.0
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:apport_project:apport:2.14.1:*:*:*:*:*:*:* | ||
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
| cpe:2.3:a:apport_project:apport:2.20.9:*:*:*:*:*:*:* | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
| cpe:2.3:a:apport_project:apport:2.20.7:*:*:*:*:*:*:* | ||
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | ||
| cpe:2.3:a:apport_project:apport:2.20.1:*:*:*:*:*:*:* | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
To consult the complete list of CPE names with products and versions, see this page