CVE-2020-28914
An improper file permissions vulnerability affects Kata Containers prior to 1.11.5.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 0.37% probability · 31th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- katacontainers/kata-containers
- Source
- cve@mitre.org
References
- https://github.com/kata-containers/kata-containers/pull/1062Third Party Advisory
- https://github.com/kata-containers/runtime/pull/3042Third Party Advisory
- https://github.com/kata-containers/runtime/pull/3051Third Party Advisory
- https://github.com/kata-containers/runtime/releases/tag/1.11.5Release Notes, Third Party Advisory
- https://github.com/kata-containers/runtime/releases/tag/1.12.0Release Notes, Third Party Advisory
- https://github.com/kata-containers/kata-containers/pull/1062Third Party Advisory
- https://github.com/kata-containers/runtime/pull/3042Third Party Advisory
- https://github.com/kata-containers/runtime/pull/3051Third Party Advisory
- https://github.com/kata-containers/runtime/releases/tag/1.11.5Release Notes, Third Party Advisory
- https://github.com/kata-containers/runtime/releases/tag/1.12.0Release Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.