{"action":"Upgrade heimdal to 7.7.0+dfsg-3 or later.","affected":[{"fixed":"7.7.0+dfsg-3","introduced":"0"}],"component":"heimdal","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["7.7.0+dfsg-3"],"id":"tcs_01M5NFTQX8GMYGZP9W76Q6FXPS","modified_at":"2026-10-23T18:03:29.972212636Z","published_at":"2021-10-12T18:15:08.357Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3671","https://security-tracker.debian.org/tracker/CVE-2021-3671"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3671#Debian:14/heimdal","url":"https://osv.dev/vulnerability/DEBIAN-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"}