Is CVE-2022-42335 actively exploited?

CVE-2022-42335 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-42335?

CVE-2022-42335 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-42335?

Patch guidance is available from xen security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-42335.

Which products are affected by CVE-2022-42335?

2 products: xen xen, fedoraproject fedora.

Fix CVE-2022-42335 - HIGH xen xen

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-476 · NULL Pointer Dereference

Metadata

Primary Vendor: XEN
Published: 4/25/2023
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2022-42335

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary