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Gentoo Linux: CVE-2011-1751: qemu-kvm: Multiple vulnerabilities

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Gentoo Linux: CVE-2011-1751: qemu-kvm: Multiple vulnerabilities

Severity
7
CVSS
(AV:A/AC:M/Au:S/C:C/I:C/A:C)
Published
06/21/2012
Created
07/25/2018
Added
10/30/2017
Modified
02/14/2023

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."

Solution(s)

  • gentoo-linux-upgrade-app-emulation-qemu-kvm

References

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