CVE-2011-1751
Summary
| CVE | CVE-2011-1751 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2012-06-21 15:55:09 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | 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." |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
AdjacentAccess Complexity
MediumAuthentication
SingleConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:A/AC:M/Au:S/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Qemu | Qemu | 0.1.0 | All | All | All |
| Application | Qemu | Qemu | 0.1.1 | All | All | All |
| Application | Qemu | Qemu | 0.1.2 | All | All | All |
| Application | Qemu | Qemu | 0.1.3 | All | All | All |
| Application | Qemu | Qemu | 0.1.4 | All | All | All |
| Application | Qemu | Qemu | 0.1.5 | All | All | All |
| Application | Qemu | Qemu | 0.1.6 | All | All | All |
| Application | Qemu | Qemu | 0.10.0 | All | All | All |
| Application | Qemu | Qemu | 0.10.1 | All | All | All |
| Application | Qemu | Qemu | 0.10.2 | All | All | All |
| Application | Qemu | Qemu | 0.10.3 | All | All | All |
| Application | Qemu | Qemu | 0.10.4 | All | All | All |
| Application | Qemu | Qemu | 0.10.5 | All | All | All |
| Application | Qemu | Qemu | 0.10.6 | All | All | All |
| Application | Qemu | Qemu | 0.11.0 | All | All | All |
| Application | Qemu | Qemu | 0.11.0 | rc0 | All | All |
| Application | Qemu | Qemu | 0.11.0 | rc1 | All | All |
| Application | Qemu | Qemu | 0.11.0 | rc2 | All | All |
| Application | Qemu | Qemu | 0.11.0-rc0 | All | All | All |
| Application | Qemu | Qemu | 0.11.0-rc1 | All | All | All |
| Application | Qemu | Qemu | 0.11.0-rc2 | All | All | All |
| Application | Qemu | Qemu | 0.11.1 | All | All | All |
| Application | Qemu | Qemu | 0.12.0 | All | All | All |
| Application | Qemu | Qemu | 0.12.0 | rc1 | All | All |
| Application | Qemu | Qemu | 0.12.0 | rc2 | All | All |
| Application | Qemu | Qemu | 0.12.1 | All | All | All |
| Application | Qemu | Qemu | 0.12.2 | All | All | All |
| Application | Qemu | Qemu | 0.12.3 | All | All | All |
| Application | Qemu | Qemu | 0.12.4 | All | All | All |
| Application | Qemu | Qemu | 0.12.5 | All | All | All |
| Application | Qemu | Qemu | 0.13.0 | All | All | All |
| Application | Qemu | Qemu | 0.13.0 | rc0 | All | All |
| Application | Qemu | Qemu | 0.13.0 | rc1 | All | All |
| Application | Qemu | Qemu | 0.14.0 | All | All | All |
| Application | Qemu | Qemu | 0.14.0 | rc0 | All | All |
| Application | Qemu | Qemu | 0.14.0 | rc1 | All | All |
| Application | Qemu | Qemu | 0.14.0 | rc2 | All | All |
| Application | Qemu | Qemu | 0.14.1 | All | All | All |
| Application | Qemu | Qemu | 0.15.0 | rc1 | All | All |
| Application | Qemu | Qemu | 0.15.0 | rc2 | All | All |
| Application | Qemu | Qemu | 0.2.0 | All | All | All |
| Application | Qemu | Qemu | 0.3.0 | All | All | All |
| Application | Qemu | Qemu | 0.4.0 | All | All | All |
| Application | Qemu | Qemu | 0.4.1 | All | All | All |
| Application | Qemu | Qemu | 0.4.2 | All | All | All |
| Application | Qemu | Qemu | 0.4.3 | All | All | All |
| Application | Qemu | Qemu | 0.5.0 | All | All | All |
| Application | Qemu | Qemu | 0.5.1 | All | All | All |
| Application | Qemu | Qemu | 0.5.2 | All | All | All |
| Application | Qemu | Qemu | 0.5.3 | All | All | All |
| Application | Qemu | Qemu | 0.5.4 | All | All | All |
| Application | Qemu | Qemu | 0.5.5 | All | All | All |
| Application | Qemu | Qemu | 0.6.0 | All | All | All |
| Application | Qemu | Qemu | 0.6.1 | All | All | All |
| Application | Qemu | Qemu | 0.7.0 | All | All | All |
| Application | Qemu | Qemu | 0.7.1 | All | All | All |
| Application | Qemu | Qemu | 0.7.2 | All | All | All |
| Application | Qemu | Qemu | 0.8.0 | All | All | All |
| Application | Qemu | Qemu | 0.8.1 | All | All | All |
| Application | Qemu | Qemu | 0.8.2 | All | All | All |
| Application | Qemu | Qemu | 0.9.0 | All | All | All |
| Application | Qemu | Qemu | 0.9.1 | All | All | All |
| Application | Qemu | Qemu | 0.9.1-5 | All | All | All |
| Application | Qemu | Qemu | 1.0 | All | All | All |
| Application | Qemu | Qemu | 1.0 | rc1 | All | All |
| Application | Qemu | Qemu | 1.0 | rc2 | All | All |
| Application | Qemu | Qemu | 1.0 | rc3 | All | All |
| Application | Qemu | Qemu | 1.0 | rc4 | All | All |
| Application | Qemu | Qemu | 1.0.1 | All | All | All |
| Application | Qemu | Qemu | 1.1 | All | All | All |
| Application | Qemu | Qemu | 1.1 | rc1 | All | All |
| Application | Qemu | Qemu | 1.1 | rc2 | All | All |
| Application | Qemu | Qemu | 1.1 | rc3 | All | All |
| Application | Qemu | Qemu | 1.1 | rc4 | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| GitHub - nelhage/virtunoid: My KVM breakout code from my DEFCON/Black Hat 2011 presentation | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Qemu Two Vulnerabilities - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| oss-security - CVE-2011-1751 qemu: acpi_piix4: missing hotplug check during device removal | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| KVM qemu-kvm Two Vulnerabilities - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| USN-1145-1: QEMU vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Debian update for qemu-kvm - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| SUSE update for kvm - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| Made of Bugs » BlackHat/DEFCON 2011 talk: Breaking out of KVM | af854a3a-2127-422b-91ae-364da2661108 | blog.nelhage.com | |
| kvm/qemu-kvm.git - QEMU modified to work with kvm | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | |
| QEMU PIIX4 Hotplug Use After Free Remote Code Execution Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| access.redhat.com | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| [Qemu-devel] [PATCH] Ignore pci unplug requests for unpluggable devices | af854a3a-2127-422b-91ae-364da2661108 | lists.nongnu.org | |
| hermes.opensuse.org/messages/8572547 | af854a3a-2127-422b-91ae-364da2661108 | hermes.opensuse.org | |
| openSUSE-SU-2011:0510-1: moderate: kvm security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Red Hat update for qemu-kvm - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| www.osvdb.org/73395 | af854a3a-2127-422b-91ae-364da2661108 | www.osvdb.org | |
| 699773 – (CVE-2011-1751) CVE-2011-1751 qemu: acpi_piix4: missing hotplug check during device removal | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | |
| Ubuntu update for qemu-kvm - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| kvm/qemu-kvm.git - QEMU modified to work with kvm | MITRE | git.kernel.org | |
| Red Hat Customer Portal | MITRE | access.redhat.com | |
| CVE-2011-1751 - Red Hat Customer Portal | MITRE | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.