Sri Nagasubramanian

**Name of the Vulnerable Software and Affected Versions** Samba (affected versions not specified) **Description** 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. This could allow a remote attacker to read, modify, or delete files. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.