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Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 458135

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: wwan: t7xx: validate port_count
 against message length in t7xx_port_enum_msg_handler t7xx_port_enum_msg_handler() uses the modem-supplied
 port_count field as a loop bound over port_msg->data[] without checking that the message buffer contains
 sufficient data. A modem sending port_count=65535 in a 12-byte buffer triggers a slab-out-of-bounds read
 of up to 262140 bytes. Add a sizeof(*port_msg) check before accessing the port message header fields to
 guard against undersized messages. Add a struct_size() check after extracting port_count and before the
 loop. In t7xx_parse_host_rt_data(), guard the rt_feature header read with a remaining-buffer check before
 accessing data_len, validate feat_data_len against the actual remaining buffer to prevent OOB reads and
 signed integer overflow on offset. Pass msg_len from both call sites: skb->len at the DPMAIF path after
 skb_pull(), and the validated feat_data_len at the handshake path. (CVE-2026-43495)

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-2026-43495

Plugin Details

Severity: High

ID: 458135

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.85

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-43495

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/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: 5/22/2026

Vulnerability Publication Date: 5/21/2026

Reference Information

CVE: CVE-2026-43495