Detections
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Echo: linux: security update to 6.1.159-1

low Tenable Cloud Security Plugin ID 458408

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: net: ipv6: fix field-spanning memcpy
 warning in AH output Fix field-spanning memcpy warnings in ah6_output() and ah6_output_done() where
 extension headers are copied to/from IPv6 address fields, triggering fortify-string warnings about writes
 beyond the 16-byte address fields. memcpy: detected field-spanning write (size 40) of single field
 "&top_iph->saddr" at net/ipv6/ah6.c:439 (size 16) WARNING: CPU: 0 PID: 8838 at net/ipv6/ah6.c:439
 ah6_output+0xe7e/0x14e0 net/ipv6/ah6.c:439 The warnings are false positives as the extension headers are
 intentionally placed after the IPv6 header in memory. Fix by properly copying addresses and extension
 headers separately, and introduce helper functions to avoid code duplication. (CVE-2025-40363)

Solution

Update the linux library and its related packages to version 6.1.159-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-40363

Plugin Details

Severity: Low

ID: 458408

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 1

Temporal Score: 0.7

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

CVSS Score Source: CVE-2025-40363

CVSS v3

Risk Factor: Low

Base Score: 2.5

Temporal Score: 2.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/16/2025

Vulnerability Publication Date: 12/9/2025

Reference Information

CVE: CVE-2025-40363