CVE-2022-26357

Gentoo Linux Security Advisory 202402-07

Severity Score

7.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

Una carrera en la limpieza del ID de dominio de VT-d Los ID de dominio de Xen presentan hasta 15 bits de ancho. El hardware VT-d puede permitir sólo menos de 15 bits para mantener un ID de dominio que asocie un dispositivo físico con un dominio particular. Por lo tanto, internamente los ID de dominio de Xen son asignados al rango de valores más pequeño. La limpieza de las estructuras de mantenimiento de la casa presenta una carrera, lo que permite que los ID de dominio VT-d sean filtrados y que los flushes sean evitados

Multiple vulnerabilities have been found in Xen, the worst of which can lead to arbitrary code execution. Versions greater than or equal to 4.16.6_pre1 are affected.

*Credits: This issue was discovered by Jan Beulich of SUSE.

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-03-02 CVE Reserved
2022-04-05 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2022/04/05/2	2024-02-04
http://xenbits.xen.org/xsa/advisory-399.html	2024-02-04

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F	2024-02-04
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD	2024-02-04
https://security.gentoo.org/glsa/202402-07	2024-02-04
https://www.debian.org/security/2022/dsa-5117	2024-02-04
https://xenbits.xenproject.org/xsa/advisory-399.txt	2024-02-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				>= 4.11.0 < 4.12.0 Search vendor "Xen" for product "Xen" and version " >= 4.11.0 < 4.12.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				>= 4.13.0 < 4.16.0 Search vendor "Xen" for product "Xen" and version " >= 4.13.0 < 4.16.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected