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CVE-2011-1751 Detail

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."


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html
http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html
http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
http://rhn.redhat.com/errata/RHSA-2011-0534.html
http://rhn.redhat.com/errata/RHSA-2011-0534.html
http://secunia.com/advisories/44393 Vendor Advisory 
http://secunia.com/advisories/44393 Vendor Advisory 
http://secunia.com/advisories/44458 Vendor Advisory 
http://secunia.com/advisories/44458 Vendor Advisory 
http://secunia.com/advisories/44648 Vendor Advisory 
http://secunia.com/advisories/44648 Vendor Advisory 
http://secunia.com/advisories/44658 Vendor Advisory 
http://secunia.com/advisories/44658 Vendor Advisory 
http://secunia.com/advisories/44660 Vendor Advisory 
http://secunia.com/advisories/44660 Vendor Advisory 
http://secunia.com/advisories/44900 Vendor Advisory 
http://secunia.com/advisories/44900 Vendor Advisory 
http://www.openwall.com/lists/oss-security/2011/05/19/2
http://www.openwall.com/lists/oss-security/2011/05/19/2
http://www.osvdb.org/73395
http://www.osvdb.org/73395
http://www.securityfocus.com/bid/47927
http://www.securityfocus.com/bid/47927
https://bugzilla.redhat.com/show_bug.cgi?id=699773
https://bugzilla.redhat.com/show_bug.cgi?id=699773
https://github.com/nelhage/virtunoid
https://github.com/nelhage/virtunoid
https://hermes.opensuse.org/messages/8572547
https://hermes.opensuse.org/messages/8572547
https://www.ubuntu.com/usn/USN-1145-1/
https://www.ubuntu.com/usn/USN-1145-1/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation cwe source acceptance level NIST  

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Change History

10 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-1751
NVD Published Date:
06/21/2012
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.