Total vulnerabilities in the database
A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions when the Samba VFS module "acl_xattr" is configured with "acl_xattr:ignore system acls = yes". The SMB protocol allows opening files when the client requests read-only access but then implicitly truncates the opened file to 0 bytes if the client specifies a separate OVERWRITE create disposition request. The issue arises in configurations that bypass kernel file system permissions checks, relying solely on Samba's permissions.
| Software | From | Fixed in |
|---|---|---|
| samba / samba | 4.19.0 | 4.19.1 |
| samba / samba | 4.18.0 | 4.18.8 |
| samba / samba | - | 4.17.12 |
| fedoraproject / fedora | 39 | 39.x |
| redhat / enterprise_linux | 8.0 | 8.0.x |
| redhat / storage | 3.0 | 3.0.x |
| redhat / enterprise_linux_eus | 9.0 | 9.0.x |