CVE-2025-58143: Mutiple vulnerabilities in the Viridian interface
[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 TSC area. This is CVE-2025-27466.
2. A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. This is CVE-2025-58142.
3. A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. This is CVE-2025-58143.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-58143?
CVE-2025-58143 has been rated with a high severity due to the potential for memory corruption and denial of service.
How do I fix CVE-2025-58143?
To mitigate CVE-2025-58143, updating the Xen Viridian interface to the latest version that addresses this vulnerability is recommended.
What systems are affected by CVE-2025-58143?
CVE-2025-58143 specifically affects the Xen Viridian interface, which is used in virtualization environments.
Can CVE-2025-58143 lead to data loss?
Yes, CVE-2025-58143 could potentially lead to data loss through a denial of service scenario.
Is there a patch available for CVE-2025-58143?
Yes, a patch is available to address CVE-2025-58143, and users should ensure they apply it promptly.