{"action":"Upgrade fail2ban to 0.8.3-2sid1 or later.","affected":[{"fixed":"0.8.3-2sid1","introduced":"0"}],"component":"fail2ban","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["0.8.3-2sid1"],"id":"tcs_01M5N97KHHS5ZJ0F7GGFS47R4T","modified_at":"2026-10-23T17:47:31.269822198Z","published_at":"2009-02-13T01:30:00.360Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2009-0362","https://security-tracker.debian.org/tracker/CVE-2009-0362"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2009-0362#Debian:13/fail2ban","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2009-0362"}],"summary":"filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DN"}