Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 458996

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: batman-adv: tvlv: reject oversized
TVLV packets batadv_tvlv_container_ogm_append() builds a TVLV packet section from the tvlv.container_list.
The total size of this section is computed by batadv_tvlv_container_list_size(), which sums the sizes of
all registered containers. The return type and accumulator in batadv_tvlv_container_list_size() were u16.
If the accumulated size exceeds U16_MAX, the value wraps around, causing the subsequent allocation in
batadv_tvlv_container_ogm_append() to be undersized. The memcpy-style copy that follows would then write
beyond the end of the allocated buffer, corrupting kernel memory. Fix this by widening the return type of
batadv_tvlv_container_list_size() to size_t. In batadv_tvlv_container_ogm_append(), check the computed
length against U16_MAX before proceeding, and bail out as if the allocation had failed when the limit is
exceeded. (CVE-2026-52934)

Solution

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

Plugin Details

Severity: High

ID: 458996

Version: Revision 1.1

Type: Local

Family: Echo Local Security Checks

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.02

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-2026-52934

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: 6/25/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-52934

Detections

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