CVE-2015-2756
First published: Wed Apr 01 2015(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
- http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
- http://support.citrix.com/article/CTX201145
- http://www.debian.org/security/2015/dsa-3259
- http://www.securityfocus.com/bid/72577
- http://www.securitytracker.com/id/1031998
- http://www.ubuntu.com/usn/USN-2608-1
- http://xenbits.xen.org/xsa/advisory-126.html
- https://security.gentoo.org/glsa/201504-04
- https://support.citrix.com/article/CTX206006
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/7.0
- version/debian debian linux/8.0
- vendor/xen
- canonical/xen xen
- version/xen xen/4.3.0
- version/xen xen/4.3.1
- version/xen xen/4.3.2
- version/xen xen/4.4.0
- version/xen xen/4.4.1
- version/xen xen/4.5.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/20
- version/fedoraproject fedora/21
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/12.04
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/14.10
- version/canonical ubuntu linux/15.04