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Echo: linux: security update to 6.1.170-1

high Tenable Self-Hosted Container Security Plugin ID 465166

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: nf_tables: release
 flowtable after rcu grace period on error Call synchronize_rcu() after unregistering the hooks from error
 path, since a hook that already refers to this flowtable can be already registered, exposing this
 flowtable to packet path and nfnetlink_hook control plane. This error path is rare, it should only happen
 by reaching the maximum number hooks or by failing to set up to hardware offload, just call
 synchronize_rcu(). There is a check for already used device hooks by different flowtable that could result
 in EEXIST at this late stage. The hook parser can be updated to perform this check earlier to this error
 path really becomes rarely exercised. Uncovered by KASAN reported as use-after-free from nfnetlink_hook
 path when dumping hooks. (CVE-2026-23392)

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-2026-23392

Plugin Details

Severity: High

ID: 465166

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.95

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-23392

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 5/1/2026

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-23392