CVE-2011-1751

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…

published June 21, 2012

CVSS
—
EPSS
1%
Percentile
54.2
In the wild
Unconfirmed
What it is

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."

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00750 · 54.2th percentile
Published
2012-06-21T15:00Z
EPSS history
Timeline
  • 21 JUN 15:00Z
    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…
    cvelistv5