Skip to content
Fencer Intel
low 3.8

CVE-2020-2023 json

Kata Containers - Containers have access to the guest root filesystem device

published 6y ago modified 4mo ago also GHSA-6978-vg2j-cc9q , EUVD-2022-0858

cvss
3.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/kata-containers/agent 1.9.1, 1.10.5, 1.11.1
  • go github.com/kata-containers/runtime 1.9.1, 1.10.5, 1.11.1
  • Kata Containers Kata Containers 1.10.5, 1.11.1

Is CVE-2020-2023 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
NVD 3.1 6.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/kata-containers/agent
<1.9.1
>=1.10.0, <1.10.5
>=1.11.0, <1.11.1
1.9.1
1.10.5
1.11.1
go github.com/kata-containers/runtime
<1.9.1
>=1.10.0, <1.10.5
>=1.11.0, <1.11.1
1.9.1
1.10.5
1.11.1

Affected products

  • Kata Containers Kata Containers

Classification

Weakness
  • CWE-250 Execution with Unnecessary Privileges
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.