QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
CVSS Details
- CVSS 3.1 Base Score: 5.5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade xenUpgrade qemu | Jul 30, 2024 | Apr 1, 2015 |
| Freebsd | — | Upgrade 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-doc-pdfUpgrade xen-libsUpgrade xen-kmp-paeUpgrade xen-develUpgrade xen-libs-32bitUpgrade xen-toolsUpgrade xen-doc-htmlUpgrade xenUpgrade xen-kmp-traceUpgrade xen-kmp-defaultUpgrade xen-tools-domU | Dec 18, 2015 | Apr 1, 2015 |
| Ubuntu | — | Upgrade qemu-kvmUpgrade qemu-system-aarch64Upgrade qemu-system-miscUpgrade qemu-systemUpgrade qemu-system-mipsUpgrade qemu-system-ppcUpgrade qemu-system-armUpgrade qemu-system-sparcUpgrade qemu-system-x86 | Nov 8, 2024 | Apr 1, 2015 |
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