CVE-2021-21334

medium
Published 2024-01-31 · Modified 2026-03-13
CVSS v3
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v2
VIR risk
5.5

Description

containerd environment variable leak

Predictions

Exploit likelihood
30%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-21334.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-21334

OS impact

OSVersionStatusFixed in
arch archfixed1.4.4-1
debian debianbookwormfixed1.4.4~ds1-1
debian debianbullseyefixed1.4.4~ds1-1
debian debianforkyfixed1.4.4~ds1-1
debian debiansidfixed1.4.4~ds1-1
debian debiantrixiefixed1.4.4~ds1-1
suse slesaffected

Package impact

EcosystemPackageVulnerableFixed
golang Gogithub.com/containerd/containerd>=1.4.0,<1.4.41.4.4
golang Gogithub.com/containerd/containerd<1.3.101.3.10

References

Verify integrity in audit chain (admin only). AS-IS.