CVE-2011-1751

N/A
Published: June 21, 2012 at 03:00 PM UTC
Updated: June 16, 2026 at 11:29 PM UTC
1 product affected across 1 vendorQEMU

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Severity
N/A
Exploit prediction
EPSS 0.7%

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."

References (18)

CVSS

Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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