CVE-2018-1000400

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-18 · updated 2026-06-17
Weakness: CWE-269

Description

Kubernetes CRI-O version prior to 1.9 contains a Privilege Context Switching Error (CWE-270) vulnerability in the handling of ambient capabilities that can result in containers running with elevated privileges, allowing users abilities they should not have. This attack appears to be exploitable via container execution. This vulnerability appears to have been fixed in 1.9.

Affected products

cri-o: before 1.9.0 — fixed in 1.9.0

How to fix

Upgrade to a fixed version: cri-o 1.9.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/104262
https://github.com/kubernetes-incubator/cri-o/pull/1558/files
http://www.securityfocus.com/bid/104262
https://github.com/kubernetes-incubator/cri-o/pull/1558/files

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