CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
14.7%
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.
Author | Note |
---|---|
mdeslaur | hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary |
www.openwall.com/lists/oss-security/2023/04/25/1
xenbits.xen.org/xsa/advisory-430.html
launchpad.net/bugs/cve/CVE-2022-42335
nvd.nist.gov/vuln/detail/CVE-2022-42335
security-tracker.debian.org/tracker/CVE-2022-42335
www.cve.org/CVERecord?id=CVE-2022-42335
www.openwall.com/lists/oss-security/2023/04/25/1
xenbits.xen.org/xsa/advisory-430.html
xenbits.xenproject.org/xsa/advisory-430.txt