Detections
Analytics

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

critical Tenable Cloud Security Plugin ID 463159

Description

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

 - A path traversal vulnerability was identified in Samba when processing client pipe names connecting to
 Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients
 to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand.
 However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe
 name containing Unix directory traversal characters (../). This could result in SMB clients connecting as
 root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe
 name resolving to an external service using an existing Unix domain socket, it could potentially lead to
 unauthorized access to the service and consequential adverse events, including compromise or service
 crashes. (CVE-2023-3961)

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-2023-3961

Plugin Details

Severity: Critical

ID: 463159

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2023-3961

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-3961

IAVA: 2023-A-0535-S