Echo: linux: security update to 6.1.170-1

high Tenable Cloud Security Plugin ID 461251

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: Squashfs: check metadata block offset
is within range Syzkaller reports a "general protection fault in squashfs_copy_data" This is ultimately
caused by a corrupted index look-up table, which produces a negative metadata block offset. This is
subsequently passed to squashfs_copy_data (via squashfs_read_metadata) where the negative offset causes an
out of bounds access. The fix is to check that the offset is within range in squashfs_read_metadata. This
will trap this and other cases. (CVE-2026-23388)

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-2026-23388

Plugin Details

Severity: High

ID: 461251

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.6

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-23388

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-23388