{"id":"CVE-2021-43566","details":"All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.","modified":"2026-04-11T12:38:14.891429Z","published":"2022-01-11T16:15:07.813Z","related":["SUSE-SU-2022:0283-1","SUSE-SU-2022:0323-1","openSUSE-SU-2022:0283-1"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220110-0001/"},{"type":"REPORT","url":"https://bugzilla.samba.org/show_bug.cgi?id=13979"},{"type":"FIX","url":"https://www.samba.org/samba/security/CVE-2021-43566.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"0"},{"fixed":"27a1dfbce256b65a79b88b5fbc9b4701c05488f9"}],"database_specific":{"cpe":"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"4.13.16"}],"source":"CPE_FIELD"}}],"versions":["ldb-1.1.0","ldb-1.1.10","ldb-1.1.11","ldb-1.1.12","ldb-1.1.13","ldb-1.1.14","ldb-1.1.15","ldb-1.1.16","ldb-1.1.17","ldb-1.1.18","ldb-1.1.19","ldb-1.1.2","ldb-1.1.20","ldb-1.1.21","ldb-1.1.22","ldb-1.1.23","ldb-1.1.25","ldb-1.1.26","ldb-1.1.27","ldb-1.1.28","ldb-1.1.29","ldb-1.1.3","ldb-1.1.30","ldb-1.1.31","ldb-1.1.4","ldb-1.1.5","ldb-1.1.6","ldb-1.1.8","ldb-1.1.9","ldb-1.2.0","ldb-1.2.1","ldb-1.2.2","ldb-1.3.0","ldb-1.3.1","ldb-1.3.2","ldb-1.4.0","ldb-1.4.1","ldb-1.5.0","ldb-1.5.1","ldb-1.5.2","ldb-1.6.1","ldb-1.6.2","ldb-1.6.3","ldb-2.0.5","ldb-2.1.0","ldb-2.1.1","ldb-2.2.0","ldb-2.2.2","ldb-2.2.3","samba-4.0.0alpha10","samba-4.0.0alpha17","samba-4.0.0alpha18","samba-4.0.0alpha19","samba-4.0.0alpha20","samba-4.0.0alpha21","samba-4.0.0alpha6","samba-4.0.0alpha7","samba-4.0.0alpha8","samba-4.0.0alpha9","samba-4.0.0beta1","samba-4.0.0beta2","samba-4.0.0beta3","samba-4.0.0beta4","samba-4.0.0beta5","samba-4.0.0beta6","samba-4.0.0beta7","samba-4.0.0beta8","samba-4.0.0rc1","samba-4.10.0rc1","samba-4.11.0rc1","samba-4.12.0rc1","samba-4.13.0","samba-4.13.0rc1","samba-4.13.0rc2","samba-4.13.0rc3","samba-4.13.0rc4","samba-4.13.0rc5","samba-4.13.0rc6","samba-4.13.10","samba-4.13.11","samba-4.13.12","samba-4.13.13","samba-4.13.14","samba-4.13.15","samba-4.13.2","samba-4.13.3","samba-4.13.4","samba-4.13.5","samba-4.13.9","samba-4.2.0rc1","samba-4.3.0rc1","samba-4.4.0rc1","samba-4.5.0rc1","samba-4.6.0rc1","samba-4.7.0rc1","samba-4.8.0rc1","samba-4.9.0rc1","talloc-1.3.1","talloc-2.0.0","talloc-2.0.7","talloc-2.0.8","talloc-2.1.0","talloc-2.1.1","talloc-2.1.10","talloc-2.1.11","talloc-2.1.12","talloc-2.1.13","talloc-2.1.14","talloc-2.1.15","talloc-2.1.16","talloc-2.1.2","talloc-2.1.3","talloc-2.1.4","talloc-2.1.5","talloc-2.1.6","talloc-2.1.7","talloc-2.1.8","talloc-2.1.9","talloc-2.2.0","talloc-2.3.0","talloc-2.3.1","tdb-1.1.5","tdb-1.2.0","tdb-1.2.1","tdb-1.2.10","tdb-1.2.11","tdb-1.2.12","tdb-1.2.13","tdb-1.3.0","tdb-1.3.1","tdb-1.3.10","tdb-1.3.11","tdb-1.3.12","tdb-1.3.13","tdb-1.3.14","tdb-1.3.15","tdb-1.3.16","tdb-1.3.17","tdb-1.3.18","tdb-1.3.2","tdb-1.3.3","tdb-1.3.4","tdb-1.3.5","tdb-1.3.6","tdb-1.3.7","tdb-1.3.8","tdb-1.3.9","tdb-1.4.0","tdb-1.4.1","tdb-1.4.2","tdb-1.4.3","tevent-0.10.0","tevent-0.10.1","tevent-0.10.2","tevent-0.9.11","tevent-0.9.12","tevent-0.9.13","tevent-0.9.14","tevent-0.9.15","tevent-0.9.16","tevent-0.9.17","tevent-0.9.18","tevent-0.9.19","tevent-0.9.20","tevent-0.9.21","tevent-0.9.22","tevent-0.9.23","tevent-0.9.24","tevent-0.9.25","tevent-0.9.26","tevent-0.9.27","tevent-0.9.28","tevent-0.9.29","tevent-0.9.30","tevent-0.9.31","tevent-0.9.32","tevent-0.9.33","tevent-0.9.34","tevent-0.9.35","tevent-0.9.36","tevent-0.9.37","tevent-0.9.38","tevent-0.9.39","tevent-0.9.8"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43566.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}