vulnerability
SUSE: CVE-2023-4091: SUSE Linux Security Advisory
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:N/AC:L/Au:S/C:N/I:C/A:N) | 10/10/2023 | 10/11/2023 | 01/28/2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:C/A:N)
Published
10/10/2023
Added
10/11/2023
Modified
01/28/2025
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.
Solution(s)
suse-upgrade-ctdbsuse-upgrade-ctdb-pcp-pmdasuse-upgrade-libsamba-policy-develsuse-upgrade-libsamba-policy-python3-develsuse-upgrade-libsamba-policy0-python3suse-upgrade-libsamba-policy0-python3-32bitsuse-upgrade-sambasuse-upgrade-samba-ad-dcsuse-upgrade-samba-ad-dc-libssuse-upgrade-samba-ad-dc-libs-32bitsuse-upgrade-samba-cephsuse-upgrade-samba-clientsuse-upgrade-samba-client-32bitsuse-upgrade-samba-client-libssuse-upgrade-samba-client-libs-32bitsuse-upgrade-samba-develsuse-upgrade-samba-devel-32bitsuse-upgrade-samba-docsuse-upgrade-samba-dsdb-modulessuse-upgrade-samba-gpupdatesuse-upgrade-samba-ldb-ldapsuse-upgrade-samba-libssuse-upgrade-samba-libs-32bitsuse-upgrade-samba-libs-python3suse-upgrade-samba-libs-python3-32bitsuse-upgrade-samba-python3suse-upgrade-samba-testsuse-upgrade-samba-toolsuse-upgrade-samba-winbindsuse-upgrade-samba-winbind-libssuse-upgrade-samba-winbind-libs-32bit

NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.