CVE-2015-2756

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.
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Configurations

Configuration 1 (hide)

OR cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

Information

Published : 2015-04-01 07:59

Updated : 2018-10-30 09:26


NVD link : CVE-2015-2756

Mitre link : CVE-2015-2756


JSON object : View

CWE
CWE-264

Permissions, Privileges, and Access Controls

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Products Affected

debian

  • debian_linux

canonical

  • ubuntu_linux

xen

  • xen

fedoraproject

  • fedora