The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
Published: 2022-02-21
CVSS: 9.0
CVSS Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C
Download CVE-2021-44142 POC (Proof-of-Concept) here:
Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.
https://connollyfinan.ie/poc-88-cve-2023-23392/
https://connollyfinan.ie/poc-255-cve-2025-58246/
https://connollyfinan.ie/poc-378-cve-2023-23397/