{"action":"Upgrade thunderbird to 91.4.1-r0 or later.","affected":[{"fixed":"91.4.1-r0","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.20","exploited":false,"fixed_versions":["91.4.1-r0"],"id":"tcs_01M6GWDYW68Z2BVD3T7CXE7XM4","modified_at":"2026-11-03T06:32:41.661452504Z","published_at":"2021-12-14T14:15:09.410Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-44538","https://security.alpinelinux.org/vuln/CVE-2021-44538"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-44538#Alpine:v3.20/thunderbird","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-44538"}],"summary":"The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state"}