Detections
Analytics

Echo: samba: security update to 2:4.17.12+dfsg-0+deb12u1

medium Tenable Cloud Security Plugin ID 457334

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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'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.
 (CVE-2023-42670)

Solution

Update the samba library and its related packages to version 2:4.17.12+dfsg-0+deb12u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-42670

Plugin Details

Severity: Medium

ID: 457334

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2023-42670

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-42670

IAVA: 2023-A-0535-S