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
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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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
Products Affected
debian
- debian_linux
canonical
- ubuntu_linux
xen
- xen
fedoraproject
- fedora