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Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 463206

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: Bluetooth: RFCOMM: validate skb length
 in MCC handlers The RFCOMM MCC handlers cast skb->data to protocol-specific structs without validating
 skb->len first. A malicious remote device can send truncated MCC frames and trigger out-of-bounds reads in
 these handlers. Fix this by using skb_pull_data() to validate and access the required data before
 dereferencing it. rfcomm_recv_rpn() requires special handling since ETSI TS 07.10 allows 1-byte RPN
 requests. Handle this by validating only the DLCI byte first, and validating the full struct only when len
 > 1. (CVE-2026-53254)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53254

Plugin Details

Severity: High

ID: 463206

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

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-2026-53254

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: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-53254