{"action":"Upgrade tor to 0.2.3.20-rc-1 or later.","affected":[{"fixed":"0.2.3.20-rc-1","introduced":"0"}],"component":"tor","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.2.3.20-rc-1"],"id":"tcs_01M5NA3EFK2QH59HB7RG787243","modified_at":"2026-10-23T17:47:47.034018850Z","published_at":"2012-08-26T03:17:44.043Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2012-3517","https://security-tracker.debian.org/tracker/CVE-2012-3517"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2012-3517","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2012-3517"}],"summary":"Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests."}