Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2015-2756

Published: Apr 01, 2015 | Modified: Apr 12, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.9 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
4.3 MODERATE
AV:A/AC:H/Au:S/C:N/I:N/A:C
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2015-2756
CWEhttps://cwe.mitre.org/data/definitions/264.html

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 Software

NameVendorStart VersionEnd Version
Debian_linuxDebian7.0 (including)7.0 (including)
Debian_linuxDebian8.0 (including)8.0 (including)
QemuUbuntudevel*
QemuUbuntuesm-infra-legacy/trusty*
QemuUbuntutrusty*
QemuUbuntutrusty/esm*
QemuUbuntuutopic*
QemuUbuntuvivid*
Qemu-kvmUbuntulucid*
XenUbuntuprecise*
XenUbuntutrusty*
XenUbuntuutopic*
Xen-3.3Ubuntulucid*
Xen-3.3Ubuntuupstream*

References

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