CVE-2025-58142: 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/xento a version that resolves this vulnerability.Fixed in 4.17.5+72-g01140da4e8-1Fixed in 4.17.7+13-g2445b30a44-0+deb12u1Fixed in 4.20.3+127-gc42374a105-0+deb13u1Fixed in 4.20.4+63-g7abfd2bce2-0+deb13u1Fixed in 4.20.4+39-gf1e1321c87-1Fixed in 4.20.4+63-g7abfd2bce2-1
Event History
Frequently Asked Questions
What is the severity of CVE-2025-58142?
CVE-2025-58142 has a high severity rating due to potential denial of service caused by memory handling issues.
How do I fix CVE-2025-58142?
To fix CVE-2025-58142, it is recommended to update to the latest version of Xen Viridian that addresses the identified vulnerabilities.
What are the affected versions for CVE-2025-58142?
CVE-2025-58142 impacts all versions of Xen Viridian prior to the security updates addressing the vulnerabilities.
What types of vulnerabilities are associated with CVE-2025-58142?
CVE-2025-58142 includes vulnerabilities such as NULL pointer dereference and improper handling of guest memory pages.
Is there a workaround for CVE-2025-58142?
Currently, there are no known effective workarounds for CVE-2025-58142 except for updating the affected software.