Add base-image freshness check to the CVE scan runbook#190
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When triaging a CVE, check for a newer base digest before hand-patching: base-layer and apt CVEs usually clear in a batch on a rebuilt base, and a base bump needs no tool refresh here (tools are pinned independently of the base). Dependabot's weekly bump may lag a fresh CVE, so this is the cheapest first thing to try.
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Summary
When triaging a ci-tools CVE, a newer base image often clears base-layer and apt CVEs in a batch, but the Vulnerability Scan Failure Runbook only mentioned bumping the base for CVEs already attributed to the base layer. This adds an explicit early step to check for a fresher base digest before hand-patching — it's frequently the cheapest fix, and Dependabot's weekly base bump may lag a freshly-disclosed CVE.
Changes
docs/how-to/publish-image.md, noting a base bump needs no tool refresh (the pinned tools are independent of the base digest).Further Comments
Docs-only follow-up from the ci-tools CVE / Lua 5.4 work (#189).
make lint-mdclean.