Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_6: security update to 19216.220.174

high Tenable Self-Hosted Container Security Plugin ID 472455

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: netfilter: conntrack: add missing
netlink policy validations Hyunwoo Kim reports out-of-bounds access in sctp and ctnetlink. These
attributes are used by the kernel without any validation. Extend the netlink policies accordingly. Quoting
the reporter: nlattr_to_sctp() assigns the user-supplied CTA_PROTOINFO_SCTP_STATE value directly to
ct->proto.sctp.state without checking that it is within the valid range. [..] and: ... with exp->dir =
100, the access at ct->master->tuplehash[100] reads 5600 bytes past the start of a 320-byte nf_conn
object, causing a slab-out-of-bounds read confirmed by UBSAN. (CVE-2026-31407)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.220.174 or later.

Plugin Details

Severity: High

ID: 472455

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.6

Vendor

Vendor Severity: LOW

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-2026-31407

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: 4/6/2026

Reference Information

CVE: CVE-2026-31407

Detections

Analytics