CVE-2020-28914

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kata-containers/kata-containers/pull/1062 third party advisory
https://github.com/kata-containers/runtime/pull/3042 third party advisory
https://github.com/kata-containers/runtime/pull/3051 third party advisory
https://github.com/kata-containers/runtime/releases/tag/1.12.0 third party advisory release notes
https://github.com/kata-containers/runtime/releases/tag/1.11.5 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2020-28914?
CVE-2020-28914 has been scored as a high severity vulnerability.
How to fix CVE-2020-28914?
To fix CVE-2020-28914, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-28914 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-28914 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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