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."
Published: 2012-06-21
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2241-1 qemu-kvm security update
EUVD EUVD EUVD-2011-1750 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."
Ubuntu USN Ubuntu USN USN-1145-1 QEMU vulnerabilities
History

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Qemu Qemu
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T22:37:25.758Z

Reserved: 2011-04-19T00:00:00.000Z

Link: CVE-2011-1751

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2012-06-21T15:55:09.613

Modified: 2025-04-11T00:51:21.963

Link: CVE-2011-1751

cve-icon Redhat

Severity : Important

Publid Date: 2011-05-18T00:00:00Z

Links: CVE-2011-1751 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses