CVE-2015-2756
EPSS 0.12%Published: 4/1/2015Modified: 4/28/2026
Also known as:DEBIAN-CVE-2015-2756
Description
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.
Affected packages (2)
- Debian/qemufrom 0, < 1:2.3+dfsg-3
- Debian/xenfrom 0, < 4.2.0~rc2-1