CVE-2015-2756

Published: Apr 1, 2015Modified: May 6, 2026

4.9

Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitability: 3.9 / Impact: 6.9

Source: NVD

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 (14)

Products: Debian: Debian Linux · Xen: Xen · Fedoraproject: Fedora · +1 more

Show all products

Debian: Debian Linux · Xen: Xen · Fedoraproject: Fedora · Canonical: Ubuntu Linux

1 product

1 product

1 product

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 7.0
Debian Debian Linux	Version 8.0

Configuration B

6 vulnerable

Vulnerable Software	Affected Versions
Xen Xen	Version 4.3.0
Xen Xen	Version 4.3.1
Xen Xen	Version 4.3.2
Xen Xen	Version 4.4.0
Xen Xen	Version 4.4.1
Xen Xen	Version 4.5.0

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 20
Fedoraproject Fedora	Version 21

Configuration D

4 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 12.04
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 14.10
Canonical Ubuntu Linux	Version 15.04

Related CWEs

References (26)

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html

Source: cve@mitre.org

http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html

Source: cve@mitre.org

http://support.citrix.com/article/CTX201145

Source: cve@mitre.org

http://www.debian.org/security/2015/dsa-3259

Source: cve@mitre.org

http://www.securityfocus.com/bid/72577

Source: cve@mitre.org

http://www.securitytracker.com/id/1031998

Source: cve@mitre.org

http://www.ubuntu.com/usn/USN-2608-1

Source: cve@mitre.org

http://xenbits.xen.org/xsa/advisory-126.html

Source: cve@mitre.org

Vendor Advisory

https://security.gentoo.org/glsa/201504-04

Source: cve@mitre.org

https://support.citrix.com/article/CTX206006

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://support.citrix.com/article/CTX201145

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.debian.org/security/2015/dsa-3259

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/72577

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securitytracker.com/id/1031998

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.ubuntu.com/usn/USN-2608-1

Source: af854a3a-2127-422b-91ae-364da2661108

http://xenbits.xen.org/xsa/advisory-126.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://security.gentoo.org/glsa/201504-04

Source: af854a3a-2127-422b-91ae-364da2661108

https://support.citrix.com/article/CTX206006

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.