{"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:v3.15","exploited":false,"fixed_versions":["7.7.1-r0"],"id":"tcs_01M5NDB5EFJRT6830RBFQY89HP","modified_at":"2026-10-23T17:17:56.201130512Z","published_at":"2021-10-12T18:15:08.357Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-3671","https://security.alpinelinux.org/vuln/CVE-2021-3671"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-3671#Alpine:v3.15/heimdal","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-3671"}],"summary":"A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba"}