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Echo: linux: security update to 6.1.170-1

critical Tenable Self-Hosted Container Security Plugin ID 463598

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: reject oversized global TT
 response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT
 response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT
 payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table
 response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation
 is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the
 later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the
 16-bit TVLV payload length field. (CVE-2026-31659)

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-2026-31659

Plugin Details

Severity: Critical

ID: 463598

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.25

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-31659

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/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: 5/1/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-31659