{"action":"Upgrade md4c to 0.4.7-2 or later.","affected":[{"fixed":"0.4.7-2","introduced":"0"}],"component":"md4c","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.4.7-2"],"id":"tcs_01M5NFJXJC525BB6N6MGYW673B","modified_at":"2026-10-23T18:03:26.117380376Z","published_at":"2021-04-29T15:15:11.020Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-30027","https://security-tracker.debian.org/tracker/CVE-2021-30027"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-30027","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-30027"}],"summary":"md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document."}