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."
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2012-06-21T15:00:00

Updated: 2016-12-06T21:57:01

Reserved: 2011-04-19T00:00:00


Link: CVE-2011-1751

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2012-06-21T15:55:09.613

Modified: 2023-02-13T04:30:49.203


Link: CVE-2011-1751

JSON object: View

cve-icon Redhat Information

No data.

CWE