CVE-2023-42670

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

03/11/2023

Last modified:

06/11/2024

Description

A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba&#39;s RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.

Impact

Vector 3.x

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

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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): None
Integrity (I): None
Availability (A): High

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:samba:samba::::::::		4.17.12 (excluding)
cpe:2.3:a:samba:samba::::::::	4.18.0 (including)	4.18.8 (excluding)
cpe:2.3:a:samba:samba::::::::	4.19.0 (including)	4.19.1 (excluding)
cpe:2.3:o:fedoraproject:fedora:39:::::::*

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

CVE-2023-42670

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools