Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.120.115

high Tenable Cloud Security Plugin ID 469662

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: X.509: Fix out-of-bounds access when
parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic
Constraints or Key Usage extension because the first byte of the extension is read before checking its
length. Fix it. The bug can be triggered by an unprivileged user by submitting a specially crafted
certificate to the kernel through the keyrings(7) API. Leo has demonstrated this with a proof-of-concept
program responsibly disclosed off-list. (CVE-2026-31430)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.120.115 or later.

Plugin Details

Severity: High

ID: 469662

Version: Revision 1.3

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-31430

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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

Vulnerability Publication Date: 4/20/2026

Reference Information

CVE: CVE-2026-31430

Detections

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