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.
References
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2015-04-01T14:00:00
Updated: 2017-11-14T10:57:01
Reserved: 2015-03-27T00:00:00
Link: CVE-2015-2756
JSON object: View
NVD Information
Status : Modified
Published: 2015-04-01T14:59:08.757
Modified: 2018-10-30T16:26:53.700
Link: CVE-2015-2756
JSON object: View
Redhat Information
No data.
CWE