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Echo: samba: security update to 2:4.5.6+dfsg-1

medium Tenable Cloud Security Plugin ID 463044

Description

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

 - smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic
 infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.
 (CVE-2017-9461)

Solution

Update the samba library and its related packages to version 2:4.5.6+dfsg-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2017-9461

Plugin Details

Severity: Medium

ID: 463044

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: 5.3

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

CVSS Score Source: CVE-2017-9461

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 2/16/2017

Reference Information

CVE: CVE-2017-9461