{"action":"Upgrade tor to 0.3.1.9-1 or later.","affected":[{"fixed":"0.3.1.9-1","introduced":"0"}],"component":"tor","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["0.3.1.9-1"],"id":"tcs_01M5NCPZVWZTKGAZ37MA7YV188","modified_at":"2026-09-01T20:03:51.085991540Z","published_at":"2017-12-03T07:29:00.333Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-8820","https://security-tracker.debian.org/tracker/CVE-2017-8820"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-8820#Debian:13/tor","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-8820"}],"summary":"In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, remote attackers can cause a denial of service (NULL pointer derefe"}