Echo: samba: security update to 2:4.17.10+dfsg-0+deb12u1

medium Tenable Cloud Security Plugin ID 458666

Description

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

- A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not
enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers
where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-
the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and
server, affecting the integrity of the data. (CVE-2023-3347)

Solution

Update the samba library and its related packages to version 2:4.17.10+dfsg-0+deb12u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-3347

Plugin Details

Severity: Medium

ID: 458666

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: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2023-3347

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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: 7/20/2023

Reference Information

CVE: CVE-2023-3347

IAVA: 2023-A-0376-S