Google: sys-kernel/lakitu-kernel-6_1: security update to 17872.0.0

medium Tenable Cloud Security Plugin ID 450575

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: x86/hyperv: Disable IBT when hypercall
page lacks ENDBR instruction On hardware that supports Indirect Branch Tracking (IBT), Hyper-V VMs with
ConfigVersion 9.3 or later support IBT in the guest. However, current versions of Hyper-V have a bug in
that there's not an ENDBR64 instruction at the beginning of the hypercall page. Since hypercalls are made
with an indirect call to the hypercall page, all hypercall attempts fail with an exception and Linux
panics. A Hyper-V fix is in progress to add ENDBR64. But guard against the Linux panic by clearing
X86_FEATURE_IBT if the hypercall page doesn't start with ENDBR. The VM will boot and run without IBT. If
future Linux 32-bit kernels were to support IBT, additional hypercall page hackery would be needed to make
IBT work for such kernels in a Hyper-V VM. (CVE-2023-54172)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 17872.0.0 or later.

Plugin Details

Severity: Medium

ID: 450575

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.42

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-54172

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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: 9/7/2023

Reference Information

CVE: CVE-2023-54172

Detections

Analytics