Description
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. In versions prior to 3.27.0, an issue in Kata with Cloud Hypervisor allows a user of the container to modify the file system used by the Guest micro VM ultimately achieving arbitrary code execution as root in said VM. The current understanding is this doesn’t impact the security of the Host or of other containers / VMs running on that Host (note that arm64 QEMU lacks NVDIMM read-only support: It is believed that until the upstream QEMU gains this capability, a guest write could reach the image file). Version 3.27.0 patches the issue.
Problem types
CWE-732: Incorrect Permission Assignment for Critical Resource
Product status
References
github.com/...ainers/security/advisories/GHSA-wwj6-vghv-5p64
github.com/...ommit/6a672503973bf7c687053e459bfff8a9652e16bf
github.com/...containers/kata-containers/releases/tag/3.27.0