Echo: linux: security update to 6.1.147-1

medium Tenable Cloud Security Plugin ID 462245

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: espintcp: remove encap socket caching
to avoid reference leak The current scheme for caching the encap socket can lead to reference leaks when
we try to delete the netns. The reference chain is: xfrm_state -> enacp_sk -> netns Since the encap socket
is a userspace socket, it holds a reference on the netns. If we delete the espintcp state (through flush
or individual delete) before removing the netns, the reference on the socket is dropped and the netns is
correctly deleted. Otherwise, the netns may not be reachable anymore (if all processes within the ns have
terminated), so we cannot delete the xfrm state to drop its reference on the socket. This patch results in
a small (~2% in my tests) performance regression. A GC-type mechanism could be added for the socket cache,
to clear references if the state hasn't been used "recently", but it's a lot more complex than just not
caching the socket. (CVE-2025-38097)

Solution

Update the linux library and its related packages to version 6.1.147-1 or later.

Plugin Details

Severity: Medium

ID: 462245

Version: Revision 1.1

Type: Local

Family: Echo Local Security Checks

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

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-2025-38097

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: 6/12/2025

Reference Information

CVE: CVE-2025-38097

Detections

Analytics