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Echo: linux: security update to 6.1.170-1

medium Tenable Self-Hosted Container Security Plugin ID 463335

Description

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

 - In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: remove
 refcounting in expectation dumpers Same pattern as previous patch: do not keep the expectation object
 alive via refcount, only store a cookie value and then use that as the skip hint for dump resumption.
 AFAICS this has the same issue as the one resolved in the conntrack dumper, when we do if
 (!refcount_inc_not_zero(&exp->use)) to increment the refcount, there is a chance that exp == last, which
 causes a double-increment of the refcount and subsequent memory leak. (CVE-2025-39764)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-39764

Plugin Details

Severity: Medium

ID: 463335

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.12

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-39764

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/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: 9/15/2025

Vulnerability Publication Date: 9/11/2025

Reference Information

CVE: CVE-2025-39764