CVE-2011-1751

CVE Details

Release Date:

2012-06-21

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.

See more information about CVE-2011-1751 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	7.4	Base Metrics:	AV:A/AC:M/Au:S/C:C/I:C/A:C
Access Vector:	Adjacent network	Attack Complexity:	Medium
Authentication:	Requires single instance	Confidentiality Impact:	Complete
Integrity Impact:	Complete	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (qemu-kvm)	ELSA-2011-0534	2011-05-28

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team