{"action":"Upgrade nss to 2:3.55-1 or later.","affected":[{"fixed":"2:3.55-1","introduced":"0"}],"component":"nss","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2:3.55-1"],"id":"tcs_01M5NEHFT5QPMW1AV5SV1C06RJ","modified_at":"2026-10-26T12:00:22.066821319Z","published_at":"2021-05-27T19:15:07.953Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-12403","https://security-tracker.debian.org/tracker/CVE-2020-12403"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-12403#Debian:14/nss","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-12403"}],"summary":"A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly dis"}