The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade xen | Jul 28, 2016 | Dec 17, 2015 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 8, 2015 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Dec 17, 2015 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub