CVEvulnerability

CVE-2015-2756

4.9 MEDIUM Published 2015-04-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2015-04-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-264

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 configurations

• debian debian linux 7.0 • debian debian linux 8.0 • xen xen 4.3.0 • xen xen 4.3.1 • xen xen 4.3.2 • xen xen 4.4.0 • xen xen 4.4.1 • xen xen 4.5.0 • fedoraproject fedora 20 • fedoraproject fedora 21 • canonical ubuntu linux 12.04 • canonical ubuntu linux 14.04 • canonical ubuntu linux 14.10 • canonical ubuntu linux 15.04

Related

Weakness · not in database (1)

References