{"action":"Upgrade libtar to 1.2.20-8+deb12u1 or later.","affected":[{"fixed":"1.2.20-8+deb12u1","introduced":"0"}],"component":"libtar","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.2.20-8+deb12u1"],"id":"tcs_01M5NFQW8R1VN817FYN7818YPX","modified_at":"2026-10-23T18:04:49.793166897Z","published_at":"2022-08-10T20:15:20.450Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-33643","https://security-tracker.debian.org/tracker/CVE-2021-33643"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-33643","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-33643"}],"summary":"An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read."}