CVE-2020-2024: Kata Containers - Guests can trick the kata-runtime into unmounting any mount point on the host

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-05-19 · updated 2026-06-17
Weakness: CWE-59

Description

An improper link resolution vulnerability affects Kata Containers versions prior to 1.11.0. Upon container teardown, a malicious guest can trick the kata-runtime into unmounting any mount point on the host and all mount points underneath it, potentiality resulting in a host DoS.

Affected products

Katacontainers Runtime: before 1.11.0 — fixed in 1.11.0

How to fix

Upgrade to a fixed version: Katacontainers Runtime 1.11.0. Check the vendor advisory for mitigations.

References

https://github.com/kata-containers/runtime/issues/2474
https://github.com/kata-containers/runtime/pull/2475
https://github.com/kata-containers/runtime/issues/2474
https://github.com/kata-containers/runtime/pull/2475

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