🛡️ CVE-2022-42335
🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-476 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-476
Public Exploit ✅ No
Source NVD
Published 2023-04-25
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
fedora
xen

References

Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/04/25/1
Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/04/25/1

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