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Echo: linux: security update to 6.1.170-1

high Tenable Cloud Security Plugin ID 457720

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: ignore explicit
 helper on new expectations Use the existing master conntrack helper, anything else is not really supported
 and it just makes validation more complicated, so just ignore what helper userspace suggests for this
 expectation. This was uncovered when validating CTA_EXPECT_CLASS via different helper provided by
 userspace than the existing master conntrack helper: BUG: KASAN: slab-out-of-bounds in
 nf_ct_expect_related_report+0x2479/0x27c0 Read of size 4 at addr ffff8880043fe408 by task poc/102 Call
 Trace: nf_ct_expect_related_report+0x2479/0x27c0 ctnetlink_create_expect+0x22b/0x3b0
 ctnetlink_new_expect+0x4bd/0x5c0 nfnetlink_rcv_msg+0x67a/0x950 netlink_rcv_skb+0x120/0x350 Allowing to
 read kernel memory bytes off the expectation boundary. CTA_EXPECT_HELP_NAME is still used to offer the
 helper name to userspace via netlink dump. (CVE-2026-43025)

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-2026-43025

Plugin Details

Severity: High

ID: 457720

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.48

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-43025

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/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: 5/2/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-43025