{"action":"Upgrade htmldoc to 1.9.11-4 or later.","affected":[{"fixed":"1.9.11-4","introduced":"0"}],"component":"htmldoc","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.9.11-4"],"id":"tcs_01M5NFEHQDBDJ422AT72P2HWHY","modified_at":"2026-10-23T18:03:25.222123597Z","published_at":"2022-03-16T15:15:10.100Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23158","https://security-tracker.debian.org/tracker/CVE-2021-23158"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23158","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23158"}],"summary":"A flaw was found in htmldoc in v1.9.12. Double-free in function pspdf_export(),in ps-pdf.cxx may result in a write-what-where condition, allowing an attacker to execute arbitrary code and denial of se"}