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 w
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…
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.6-2.el8_9 |
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.6-2.el8_9 |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 0:4.15.5-13.el8_6 |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | 0:4.17.5-4.el8_8 |
| Red Hat | Red Hat Enterprise Linux 9 | 0:4.18.6-101.el9_3 |
| Red Hat | Red Hat Enterprise Linux 9 | 0:4.18.6-101.el9_3 |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:4.15.5-111.el9_0 |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:4.17.5-104.el9_2 |
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | 0:4.15.5-13.el8_6 |
| Red Hat | Red Hat Enterprise Linux 6 | unspecified |
| Red Hat | Red Hat Enterprise Linux 6 | unspecified |
| Red Hat | Red Hat Enterprise Linux 7 | unspecified |
| Red Hat | Red Hat Storage 3 | unspecified |
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.