The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).
CVSS Details
- CVSS 3.1 Base Score: 5.5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade xen | Mar 31, 2017 | Apr 1, 2015 |
| Freebsd | — | Upgrade xen-kernelUpgrade xen-tools | Dec 10, 2025 | Jul 11, 2015 |
| Gentoo Linux | — | Upgrade app-emulation/xen. | Oct 30, 2017 | Apr 1, 2015 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 31, 2015 |
| Suse | — | Upgrade xen-kmp-defaultUpgrade xen-libs-32bitUpgrade xen-doc-htmlUpgrade xen-kmp-paeUpgrade xen-develUpgrade xenUpgrade xen-toolsUpgrade xen-libsUpgrade xen-tools-domU | Dec 18, 2015 | Apr 1, 2015 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Apr 1, 2015 |
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