Clair vs kube-bench

Clair is free, self-hosted software that continuously scans container images for vulnerabilities in operating-system bases, installed packages, and programming-language components. Clients use its API to index images and match them against known vulnerabilities. Clair updates its vulnerability database as new issues appear and can reanalyze images without rereading their complete contents. It supports OCI Distribution and Docker v2 images, and lists RHEL, Alpine, Ubuntu, Debian, Oracle, Photon, and SUSE distributions, plus Java, Python, Golang, and Javascript. Deployment options include microservices, monolithic installations, CI pipelines, and disconnected environments. Clair can run as an indexer, matcher, notifier, or combo process. It uses PostgreSQL for persistence and is released as a Quay.io container, with the clairctl command-line tool among its artifacts. Clair runs on Linux, supports registry scanning, and is licensed under Apache 2.0. Runtime protection is not provided.

kube-bench has no write-up on Specifiction yet; its figures are above.