CVE-2019-19921

Public on 2020-04-20
Modified on 2021-12-09
Description
A flaw was found in runc. An attacker who controls the container image for two containers that share a volume can race volume mounts during container initialization, by adding a symlink to the rootfs that points to a directory on the volume. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Important
CVSS v3 Base Score
7.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 runc 2020-04-20 18:58 ALAS-2020-1358
Amazon Linux 2 runc 2021-10-19 20:41 ALAS2DOCKER-2021-009
Amazon Linux 2 runc 2021-10-19 20:41 ALAS2NITRO-ENCLAVES-2021-009

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P
Amazon Linux CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P
NVD CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H