#VU81883 Permissions, Privileges, and Access Controls in Xen - CVE-2023-34326

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Main Vulnerability Database Vulnerabilities #VU81883

#VU81883 Permissions, Privileges, and Access Controls in Xen - CVE-2023-34326

Published: October 11, 2023


Vulnerability identifier: #VU81883
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-34326
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Xen
Software vendor:
Xen Project

Description

The vulnerability allows a remote guest to escalate privileges on the system.

The vulnerability exists due to missing IOMMU TLB flushing on x86/AMD systems. A malicious guest can access memory not owned by the guest and escalate privileges on the system.


Remediation

Install updates from vendor's website.

External links