CVE-2019-19921
Public on 2020-02-12
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
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | runc | 2020-04-20 | ALAS-2020-1358 | Fixed |
| Amazon Linux 2 - Docker Extra | runc | 2021-10-19 | ALAS2DOCKER-2021-009 | Fixed |
| Amazon Linux 2 - Aws-nitro-enclaves-cli Extra | runc | 2021-10-19 | ALAS2NITRO-ENCLAVES-2021-009 | Fixed |
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 | 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 |