CVE-2011-1751
- State
- Published
- Severity
- Not scored
- Published
- Jun 21, 2012
- Updated
- Aug 6, 2024
- Reserved
- Apr 19, 2011
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."
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- [oss-security] 20110519 CVE-2011-1751 qemu: acpi_piix4: missing hotplug check during device removalmailing-list
- RHSA-2011:0534vendor-advisory
- http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
- 44648third-party-advisory
- 73395vdb-entry
- 44393third-party-advisory
- 44658third-party-advisory
- SUSE-SU-2011:0533vendor-advisory
- [Qemu-devel] 20110519 [PATCH] Ignore pci unplug requests for unpluggable devicesmailing-list
- 47927vdb-entry
- https://github.com/nelhage/virtunoid
- https://bugzilla.redhat.com/show_bug.cgi?id=699773
- 44458third-party-advisory
- 44660third-party-advisory
- http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
- USN-1145-1vendor-advisory
- 44900third-party-advisory
- openSUSE-SU-2011:0510vendor-advisory
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