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6.3

Kata Containers: Malicious Containers Can Access Guest Root Filesystem

CVE-2020-2023 · published 6 years ago
Summary

Kata Containers versions prior to 1.11.1, 1.10.5, and 1.9 have a security issue that allows malicious containers to access the underlying system's root filesystem. This could allow attackers to take control of the system and impersonate the kata-agent. Update to the latest version of Kata Containers to fix this issue.

What to do
  • Update github.com kata-containers to version 1.9.1.
  • Update github.com kata-containers to version 1.10.5.
  • Update github.com kata-containers to version 1.11.1.
Affected software
Ecosystem VendorProductAffected versions
go github.com kata-containers <= 1.9
>= 1.10.0, < 1.10.5
>= 1.11.0, < 1.11.1
Fix: upgrade to 1.9.1
go github.com kata-containers <= 1.9
>= 1.10.0, < 1.10.5
>= 1.11.0, < 1.11.1
Fix: upgrade to 1.9.1
– katacontainers runtime <= 1.9
>= 1.10, < 1.10.5
>= 1.11, < 1.11.1
cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*
Original advisory text
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-a...
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
6.3 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-250Execution with Unnecessary Privileges
CWE-269Improper Privilege Management
Timeline
Published10 Jun 2020
Updated1 Nov 2026
First seen6 Mar 2026
Sources
GHSA-6978-vg2j-cc9q · GHSA
CVE-2020-2023 · NVD
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