CVE-2023-1194

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

03/11/2023

Last modified:

20/03/2025

Description

An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x

7.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	5.15.145 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.34 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.3.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.4:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.4:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.4:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.4:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.4:rc5::::::
cpe:2.3:o:fedoraproject:fedora:37:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-1194

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools