GHSA-6g2q-w5j3-fwh4
containerd environment variable leak
At a glance
- Published
- Updated
- CVE
- CVE-2021-21334
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Description
## Impact Containers launched through containerd's CRI implementation (through Kubernetes, crictl, or any other pod/container client that uses the containerd CRI service) that share the same image may receive incorrect environment variables, including values that are defined for other containers. If the affected containers have different security contexts, this may allow sensitive information to be unintentionally shared. If you are not using containerd’s CRI implementation (through one of the mechanisms described above), you are not vulnerable to this issue. If you are not launching multiple containers or Kubernetes pods from the same image which have different environment variables, you are not vulnerable to this issue. If you are not launching multiple containers or Kubernetes pods from the same image in rapid succession, you have reduced likelihood of being vulnerable to this issue ## Patches This vulnerability has been fixed in containerd 1.3.10 and containerd 1.4.4. Users should update to these versions as soon as they are released. ## Workarounds There are no known workarounds. ## For more information If you have any questions or comments about this advisory: * [Open an issue](https://github.com/containerd/containerd/issues/new/choose) * Email us at security@containerd.io if you think you’ve found a security bug.
Affected packages
| Package | Versions |
|---|---|
| Go · github.com/containerd/containerd | introduced 1.4.0, fixed 1.4.4 |
| Go · github.com/containerd/containerd | introduced 0, fixed 1.3.10 |
References
- https://github.com/containerd/containerd/security/advisories/GHSA-6g2q-w5j3-fwh4 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-21334 ADVISORY
- https://github.com/containerd/cri/pull/1628 WEB
- https://github.com/containerd/cri/pull/1629 WEB
- https://github.com/containerd/containerd/commit/05f951a3781f4f2c1911b05e61c160e9c30eaa8e WEB
- https://github.com/containerd/containerd/commit/2d9c8aa4b3f4313982c5c999af57212a1c5d144b WEB
- https://github.com/containerd/containerd/commit/cbcb2f57fbe221986f96b552855eb802f63193de WEB
- https://github.com/containerd/containerd/releases/tag/v1.3.10 WEB
- https://github.com/containerd/containerd/releases/tag/v1.4.4 WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUE2Z2ZUWBHRU36ZGBD2YSJCYB6ELPXE WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QIBPKSX5IOWPM3ZPFB3JVLXWDHSZTTWT WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VTXHA5JOWQRCCUZH7ZQBEYN6KZKJEYSD WEB
- https://security.gentoo.org/glsa/202105-33 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |