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VULNERABILITIES

CVE-2022-42335 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/ CVE
https://security.gentoo.org/glsa/202402-07 CVE
https://xenbits.xenproject.org/xsa/advisory-430.txt CVEPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2023/04/25/1 CVEMailing ListThird Party Advisory
http://xenbits.xen.org/xsa/advisory-430.html CVEPatchVendor Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]

Affected Products

ProductVersions
xen xen
4.17.0

CPE

  • cpe:2.3:o:xen:xen:4.17.0:*:*:*:*:*:x86:*

Remediation

  • No remediation found in references.
fedoraproject fedora
38

CPE

  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-42335
NVD Published Date:
Apr 25, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]