{"action":"Upgrade heimdal to 7.7.1-r0 or later.","affected":[{"fixed":"7.7.1-r0","introduced":"0"}],"component":"heimdal","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.14","exploited":false,"fixed_versions":["7.7.1-r0"],"id":"tcs_01M5NDJFZWP9SCGYQ2JS2PNBWY","modified_at":"2026-10-23T17:17:56.227879060Z","published_at":"2022-12-26T05:15:10.503Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-44758","https://security.alpinelinux.org/vuln/CVE-2021-44758"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-44758","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-44758"}],"summary":"Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept."}