Untrusted Pointer Dereference in Xen - CVE-2022-42335
Published: April 25, 2023
Vulnerability identifier: #VU75481
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green
CVE-ID: CVE-2022-42335
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Xen
Xen
Software vendor:
Xen Project
Xen Project
Description
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to an arbitrary pointer dereference. A malicious guest running in shadow mode and having a PCI device passed through can execute arbitrary code on the hypervisor.
Remediation
Install updates from vendor's website.