CVE-2023-4091
Public on 2023-10-11
Modified on 2024-01-30
Description
SMB client can truncate files to 0 bytes by opening files with OVERWRITE disposition when using the acl_xattr Samba VFS module with the smb.conf setting "acl_xattr:ignore system acls = yes"
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | samba | 2023-11-29 | ALAS-2023-1896 | Fixed |
| Amazon Linux 2 - Core | samba | 2023-11-29 | ALAS2-2023-2367 | Fixed |
| Amazon Linux 2023 | samba | 2023-10-30 | ALAS2023-2023-416 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |