CVE-2025-27466

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference...

ALPINE-CVE-2025-27466

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference...

UBUNTU-CVE-2025-58143

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference...

CVE-2025-27466

The Xen hypervisor contains a NULL pointer dereference vulnerability in the Viridian interface during the updating of the reference TSC area (CVE-2025-27466). This issue could potentially lead to memory disclosure, denial of service, or privilege escalation. Remediation is available through the f...

CVE-2025-58143

The Xen hypervisor is vulnerable to an information leak and reference counter underflow within the Viridian interface (XSA-472). The root cause is a race condition during the mapping of the reference TSC page , which can allow a guest to cause Xen to free a page while it is still present in the g...