CVE-2019-11251
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-11251
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-11251.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 0 |
| debian | sid | fixed | 0 |
| debian | trixie | fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | k8s.io/kubernetes | >=1.13.10,<1.13.11 | 1.13.11 |
| Go | k8s.io/kubernetes | >=1.14.6,<1.14.7 | 1.14.7 |
| Go | k8s.io/kubernetes | >=1.15.3,<1.16.0 | 1.16.0 |
References
- https://www.suse.com/security/cve/CVE-2019-11251.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-11251
- https://github.com/kubernetes/kubernetes/issues/87773
- https://github.com/kubernetes/kubernetes/pull/82143
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ
- https://github.com/advisories/GHSA-6qfg-8799-r575
- https://security-tracker.debian.org/tracker/CVE-2019-11251
Verify integrity in audit chain (admin only). AS-IS.