PT-2023-14105 · Xen+1 · Xen+1

Roger Pau + 1 · Published 2023-04-25 · Updated 2024-06-15 · CVE-2022-42335

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Xen (affected versions not specified)

Description The issue arises in environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, causing Xen to run guests in shadow mode. Due to insufficient checks in hypervisor routines for shadow page handling, a guest with a passed-through PCI device can cause the hypervisor to access an arbitrary pointer partially under guest control.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2022-42335

OPENSUSE-SU-2024:12917-1

SUSE-SU-2023:2535-1

SUSE-SU-2023_2535-1

Affected Products

Suse

Xen

References · 30

• https://osv.dev/vulnerability/openSUSE-SU-2024:12917-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG · Vendor Advisory
• https://security.gentoo.org/glsa/202402-07 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-42335 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42335 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-42335 · Security Note
• http://xenbits.xen.org/xsa/advisory-430.html · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2022-42335 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-42335 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-42335 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-42335 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-42335 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2535-1 · Vendor Advisory
• https://xenbits.xenproject.org/xsa/advisory-430.txt · Vendor Advisory
• https://t.me/cibsecurity/62793 · Telegram Post