Detections
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Echo: linux: security update to 6.1.162-1

high Tenable Cloud Security Plugin ID 457476

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: caif: fix integer underflow in
 cffrml_receive() The cffrml_receive() function extracts a length field from the packet header and, when
 FCS is disabled, subtracts 2 from this length without validating that len >= 2. If an attacker sends a
 malicious packet with a length field of 0 or 1 to an interface with FCS disabled, the subtraction causes
 an integer underflow. This can lead to memory exhaustion and kernel instability, potential information
 disclosure if padding contains uninitialized kernel memory. Fix this by validating that len >= 2 before
 performing the subtraction. (CVE-2025-68799)

Solution

Update the linux library and its related packages to version 6.1.162-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-68799

Plugin Details

Severity: High

ID: 457476

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.61

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-68799

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:A/AC:L/PR:N/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: 1/14/2026

Vulnerability Publication Date: 1/13/2026

Reference Information

CVE: CVE-2025-68799