{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"asn1c","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NETG95F9C8J4A0STY74H9M","modified_at":"2026-09-11T11:02:43.220039122Z","published_at":"2023-07-18T14:15:11.537Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-23911","https://security-tracker.debian.org/tracker/CVE-2020-23911"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-23911#Debian:13/asn1c","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-23911"}],"summary":"An issue was discovered in asn1c through v0.9.28. A NULL pointer dereference exists in the function _default_error_logger() located in asn1fix.c. It allows an attacker to cause Denial of Service."}