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Echo: linux: security update to 6.1.177-1

high Tenable Cloud Security Plugin ID 463771

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: unconditionally
 bump set->nelems before insertion In case that the set is full, a new element gets published then removed
 without waiting for the RCU grace period, while RCU reader can be walking over it already. To address this
 issue, add the element transaction even if set is full, but toggle the set_full flag to report -ENFILE so
 the abort path safely unwinds the set to its previous state. As for element updates, decrement set->nelems
 to restore it. A simpler fix is to call synchronize_rcu() in the error path. However, with a large batch
 adding elements to already maxed-out set, this could cause noticeable slowdown of such batches.
 (CVE-2026-23272)

Solution

Update the linux library and its related packages to version 6.1.177-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23272

Plugin Details

Severity: High

ID: 463771

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.82

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-2026-23272

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: 3/30/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-23272