CVE-2011-1751 | Date: (C)2012-06-21 (M)2023-12-22 |
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."
CVSS Score and Metrics +CVSS Score and Metrics -CVSS V2 Severity: |
CVSS Score : 7.4 |
Exploit Score: 4.4 |
Impact Score: 10.0 |
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CVSS V2 Metrics: |
Access Vector: ADJACENT_NETWORK |
Access Complexity: MEDIUM |
Authentication: SINGLE |
Confidentiality: COMPLETE |
Integrity: COMPLETE |
Availability: COMPLETE |
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