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CVE Reference: CVE-2011-1751 |
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| NOTE: The text on this page is written by CVE MITRE and reflects neither the opinions of Secunia or the results of our research. All data on this page is written and maintained by CVE MITRE. | |
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Original Page at CVE MITRE: CVE-2011-1751 |
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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." |
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CVE Status: Candidate |
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References: UBUNTU SUSE http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html SAID Secunia Advisory: SA44393 Secunia Advisory: SA44458 Secunia Advisory: SA44648 Secunia Advisory: SA44658 Secunia Advisory: SA44660 Secunia Advisory: SA44900 REDHAT http://rhn.redhat.com/errata/RHSA-2011-0534.html OSVDB 73395 MLIST http://www.openwall.com/lists/oss-security/2011/05/19/2 http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html MISC http://blog.nelhage.com/2011/08/breaking-out-of-kvm/ CONFIRM http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commit;h=505597e4476a6bc219d0ec1362b760d71cb4fdca BID 47927 |
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