CVE-2022-26357

Severity CVSS v4.0:

Pending analysis

Type:

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

Publication date:

05/04/2022

Last modified:

04/02/2024

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.00

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:H/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.20 MEDIUM
Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

6.20

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:xen:xen::::::::	4.11.0 (including)	4.12.0 (excluding)
cpe:2.3:o:xen:xen::::::::	4.13.0 (including)	4.16.0 (excluding)
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-26357

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools