CVE-2023-46840

Publication date 20 March 2024

Last updated 30 May 2025

Ubuntu priority

Cvss 3 Severity Score

Incorrect placement of a preprocessor directive in source code results in logic that doesn’t operate as intended when support for HVM guests is compiled out of Xen.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
xen	25.04 plucky	Needs evaluation
	24.10 oracular	Needs evaluation
	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Ignored end of standard support

Notes

mdeslaur

hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary

Severity score breakdown

Parameter	Value
Base score	4.1 · Medium
Attack vector	Local
Attack complexity	High
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N