{"action":"Upgrade firefox-esr to 78.13.0esr-1 or later.","affected":[{"fixed":"78.13.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["78.13.0esr-1"],"id":"tcs_01M5NFJRFX9DC70Z4PGMF2RNNP","modified_at":"2026-10-23T18:03:26.058865966Z","published_at":"2021-08-17T20:15:07.680Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-29980","https://security-tracker.debian.org/tracker/CVE-2021-29980"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-29980","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-29980"}],"summary":"Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderb"}