Mission and Overview
NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).
Resource Status
NVD contains:

Last updated: 2/5/2016 9:33:40 PM

CVE Publication rate: 12

Email List

NVD provides four mailing lists to the public. For information and subscription instructions please visit NVD Mailing Lists

Workload Index
Vulnerability Workload Index: 4.95
About Us
NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

National Cyber Awareness System

Vulnerability Summary for CVE-2011-1751

Original release date: 06/21/2012
Last revised: 02/13/2013


The pciej_write function in hw/acpi_piix4.c in the PIIX4 Power Management emulation in qemu-kvm does not check if a device is hotpluggable before unplugging the PCI-ISA bridge, which allows privileged guest users to cause a denial of service (guest crash) and possibly execute arbitrary code by sending a crafted value to the 0xae08 (PCI_EJ_BASE) I/O port, which leads to a use-after-free related to "active qemu timers."


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.4 (HIGH) (AV:A/AC:M/Au:S/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 4.4
CVSS Version 2 Metrics:
Access Vector: Local network exploitable
Access Complexity: Medium
Authentication: Required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: SUSE
Name: SUSE-SU-2011:0533
External Source: MLIST
Name: [Qemu-devel] 20110519 [PATCH] Ignore pci unplug requests for unpluggable devices
External Source: MISC
Name: https://github.com/nelhage/virtunoid
External Source: OSVDB
Name: 73395
External Source: MLIST
Name: [oss-security] 20110519 CVE-2011-1751 qemu: acpi_piix4: missing hotplug check during device removal
External Source: SUSE
Name: openSUSE-SU-2011:0510
External Source: MISC
Name: http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
External Source: REDHAT
Name: RHSA-2011:0534
External Source: UBUNTU
Name: USN-1145-1
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=699773
External Source: CONFIRM
Name: http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commit;h=505597e4476a6bc219d0ec1362b760d71cb4fdca
External Source: BID
Name: 47927

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:qemu:qemu:0.9.0
* cpe:/a:qemu:qemu:0.7.2
* cpe:/a:qemu:qemu:0.8.0
* cpe:/a:qemu:qemu:0.8.1
* cpe:/a:qemu:qemu:0.8.2
* cpe:/a:qemu:qemu:0.9.1
* cpe:/a:qemu:qemu:0.4.1
* cpe:/a:qemu:qemu:0.4
* cpe:/a:qemu:qemu:0.3
* cpe:/a:qemu:qemu:0.2
* cpe:/a:qemu:qemu:0.5.1
* cpe:/a:qemu:qemu:0.5.0
* cpe:/a:qemu:qemu:0.4.3
* cpe:/a:qemu:qemu:0.4.2
* cpe:/a:qemu:qemu:0.5.5
* cpe:/a:qemu:qemu:0.5.4
* cpe:/a:qemu:qemu:0.5.3
* cpe:/a:qemu:qemu:0.5.2
* cpe:/a:qemu:qemu:0.7.1
* cpe:/a:qemu:qemu:0.7.0
* cpe:/a:qemu:qemu:0.6.1
* cpe:/a:qemu:qemu:0.6.0
* cpe:/a:qemu:qemu:0.12.0:rc1
* cpe:/a:qemu:qemu:0.12.5
* cpe:/a:qemu:qemu:0.12.4
* cpe:/a:qemu:qemu:0.13.0:rc1
* cpe:/a:qemu:qemu:0.13.0:rc0
* cpe:/a:qemu:qemu:0.11.0
* cpe:/a:qemu:qemu:0.14.0:rc0
* cpe:/a:qemu:qemu:0.13.0
* cpe:/a:qemu:qemu:0.1.1
* cpe:/a:qemu:qemu:0.14.0:rc2
* cpe:/a:qemu:qemu:0.1.2
* cpe:/a:qemu:qemu:0.14.0:rc1
* cpe:/a:qemu:qemu:0.14.1
* cpe:/a:qemu:qemu:0.1
* cpe:/a:qemu:qemu:0.14.0
* cpe:/a:qemu:qemu:0.1.5
* cpe:/a:qemu:qemu:0.15.0:rc2
* cpe:/a:qemu:qemu:0.1.6
* cpe:/a:qemu:qemu:0.15.0:rc1
* cpe:/a:qemu:qemu:1.0:rc2
* cpe:/a:qemu:qemu:0.1.3
* cpe:/a:qemu:qemu:1.0:rc1
* cpe:/a:qemu:qemu:0.1.4
* cpe:/a:qemu:qemu:1.1:rc3
* cpe:/a:qemu:qemu:0.10.5
* cpe:/a:qemu:qemu:1.1:rc4
* cpe:/a:qemu:qemu:0.10.4
* cpe:/a:qemu:qemu:1.1:rc1
* cpe:/a:qemu:qemu:1.1:rc2
* cpe:/a:qemu:qemu:0.10.6
* cpe:/a:qemu:qemu:1.0
* cpe:/a:qemu:qemu:0.10.1
* cpe:/a:qemu:qemu:1.0.1
* cpe:/a:qemu:qemu:0.10.0
* cpe:/a:qemu:qemu:1.0:rc3
* cpe:/a:qemu:qemu:0.10.3
* cpe:/a:qemu:qemu:1.0:rc4
* cpe:/a:qemu:qemu:0.10.2
* cpe:/a:qemu:qemu:0.11.0-rc0
* cpe:/a:qemu:qemu:1.1
* cpe:/a:qemu:qemu:0.11.0-rc2
* cpe:/a:qemu:qemu:0.11.0-rc1
* cpe:/a:qemu:qemu:0.12.0
* cpe:/a:qemu:qemu:0.12.0:rc2
* cpe:/a:qemu:qemu:0.12.1
* cpe:/a:qemu:qemu:0.12.3
* cpe:/a:qemu:qemu:0.11.0:rc1
* cpe:/a:qemu:qemu:0.12.2
* cpe:/a:qemu:qemu:0.9.1-5
* cpe:/a:qemu:qemu:0.11.1
* cpe:/a:qemu:qemu:0.11.0:rc2
* cpe:/a:qemu:qemu:0.11.0:rc0

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)