CVE-2015-2756

N/A
Published: April 1, 2015 at 02:00 PM UTC
Updated: June 17, 2026 at 12:24 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
N/A
Exploit prediction
EPSS 0.4%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-264

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