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Test your applicationsUpgrade Chainguard kubernetes-1.30 to version 1.30.14-r7 or higher.
Note: Versions mentioned in the description apply only to the upstream kubernetes-1.30 package and not the kubernetes-1.30 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.