CVE-2022-42335

Public on 2023-04-25
Modified on 2023-04-26
Description
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
Severity
Important severity
Important
CVSS v3 Base Score
7.3
See breakdown

Affected Packages

Platform Package Release Date Advisory

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H