{"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_01M5NFQWBRA05CR8B6J5V98S5R","modified_at":"2026-10-23T18:03:49.388140164Z","published_at":"2022-08-10T20:15:20.517Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-33644","https://security-tracker.debian.org/tracker/CVE-2021-33644"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-33644","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-33644"}],"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_longname, causing an out-of-bounds read."}