// For flags

CVE-2011-1751

qemu: acpi_piix4: missing hotplug check during device removal

Severity Score

7.4
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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."

La función pciej_write en hw/acpi_piix4.c en la emulación de PIIX4 Power Management en qemu-kvm no comprueba si un dispositivo es conectable en caliente antes de desconectar el puente PCI-ISA, lo que permite causar una denegación de servicio y posiblemente ejecutar código de su elección a los usuarios privilegiados invitados mediante el envío de un valor específico al puerto I/O 0xae08 (PCI_EJ_BASE), lo que provoca a un uso después de liberación relacionado con "temporizadores qemu activos".

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-04-19 CVE Reserved
  • 2011-05-24 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Qemu
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Qemu
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0.1.0
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-
Affected
Qemu
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Qemu
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0.1.1
Search vendor "Qemu" for product "Qemu" and version "0.1.1"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
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0.1.2
Search vendor "Qemu" for product "Qemu" and version "0.1.2"
-
Affected
Qemu
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Qemu
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0.1.3
Search vendor "Qemu" for product "Qemu" and version "0.1.3"
-
Affected
Qemu
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Qemu
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0.1.4
Search vendor "Qemu" for product "Qemu" and version "0.1.4"
-
Affected
Qemu
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Qemu
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0.1.5
Search vendor "Qemu" for product "Qemu" and version "0.1.5"
-
Affected
Qemu
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Qemu
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0.1.6
Search vendor "Qemu" for product "Qemu" and version "0.1.6"
-
Affected
Qemu
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Qemu
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0.2.0
Search vendor "Qemu" for product "Qemu" and version "0.2.0"
-
Affected
Qemu
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Qemu
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0.3.0
Search vendor "Qemu" for product "Qemu" and version "0.3.0"
-
Affected
Qemu
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Qemu
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0.4.0
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-
Affected
Qemu
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Qemu
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0.4.1
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-
Affected
Qemu
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Qemu
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0.4.2
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-
Affected
Qemu
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Qemu
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0.4.3
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-
Affected
Qemu
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Qemu
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0.5.0
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-
Affected
Qemu
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Qemu
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0.5.1
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-
Affected
Qemu
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Qemu
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0.5.2
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-
Affected
Qemu
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Qemu
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0.5.3
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-
Affected
Qemu
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Qemu
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0.5.4
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-
Affected
Qemu
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Qemu
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0.5.5
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-
Affected
Qemu
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Qemu
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0.6.0
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-
Affected
Qemu
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Qemu
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0.6.1
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-
Affected
Qemu
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Qemu
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0.7.0
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-
Affected
Qemu
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Qemu
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0.7.1
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-
Affected
Qemu
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Qemu
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0.7.2
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-
Affected
Qemu
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Qemu
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0.8.0
Search vendor "Qemu" for product "Qemu" and version "0.8.0"
-
Affected
Qemu
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Qemu
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0.8.1
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-
Affected
Qemu
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Qemu
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0.8.2
Search vendor "Qemu" for product "Qemu" and version "0.8.2"
-
Affected
Qemu
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Qemu
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0.9.0
Search vendor "Qemu" for product "Qemu" and version "0.9.0"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
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0.9.1
Search vendor "Qemu" for product "Qemu" and version "0.9.1"
-
Affected
Qemu
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Qemu
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0.9.1-5
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-
Affected
Qemu
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Qemu
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0.10.0
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-
Affected
Qemu
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Qemu
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0.10.1
Search vendor "Qemu" for product "Qemu" and version "0.10.1"
-
Affected
Qemu
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Qemu
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0.10.2
Search vendor "Qemu" for product "Qemu" and version "0.10.2"
-
Affected
Qemu
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Qemu
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0.10.3
Search vendor "Qemu" for product "Qemu" and version "0.10.3"
-
Affected
Qemu
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Qemu
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0.10.4
Search vendor "Qemu" for product "Qemu" and version "0.10.4"
-
Affected
Qemu
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Qemu
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0.10.5
Search vendor "Qemu" for product "Qemu" and version "0.10.5"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.10.6
Search vendor "Qemu" for product "Qemu" and version "0.10.6"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
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0.11.0
Search vendor "Qemu" for product "Qemu" and version "0.11.0"
-
Affected
Qemu
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Qemu
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0.11.0
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rc0
Affected
Qemu
Search vendor "Qemu"
Qemu
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0.11.0
Search vendor "Qemu" for product "Qemu" and version "0.11.0"
rc1
Affected
Qemu
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Qemu
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0.11.0
Search vendor "Qemu" for product "Qemu" and version "0.11.0"
rc2
Affected
Qemu
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Qemu
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0.11.0-rc0
Search vendor "Qemu" for product "Qemu" and version "0.11.0-rc0"
-
Affected
Qemu
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Qemu
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0.11.0-rc1
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Affected
Qemu
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Qemu
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0.11.0-rc2
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Affected
Qemu
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Qemu
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0.11.1
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Affected
Qemu
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Qemu
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0.12.0
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Affected
Qemu
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Qemu
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0.12.0
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rc1
Affected
Qemu
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Qemu
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0.12.0
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rc2
Affected
Qemu
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Qemu
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0.12.1
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Affected
Qemu
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Qemu
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0.12.2
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Affected
Qemu
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Qemu
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0.12.3
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-
Affected
Qemu
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Qemu
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0.12.4
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-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.12.5
Search vendor "Qemu" for product "Qemu" and version "0.12.5"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
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0.13.0
Search vendor "Qemu" for product "Qemu" and version "0.13.0"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.13.0
Search vendor "Qemu" for product "Qemu" and version "0.13.0"
rc0
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.13.0
Search vendor "Qemu" for product "Qemu" and version "0.13.0"
rc1
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.14.0
Search vendor "Qemu" for product "Qemu" and version "0.14.0"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.14.0
Search vendor "Qemu" for product "Qemu" and version "0.14.0"
rc0
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.14.0
Search vendor "Qemu" for product "Qemu" and version "0.14.0"
rc1
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.14.0
Search vendor "Qemu" for product "Qemu" and version "0.14.0"
rc2
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.14.1
Search vendor "Qemu" for product "Qemu" and version "0.14.1"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.15.0
Search vendor "Qemu" for product "Qemu" and version "0.15.0"
rc1
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
0.15.0
Search vendor "Qemu" for product "Qemu" and version "0.15.0"
rc2
Affected
Qemu
Search vendor "Qemu"
Qemu
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1.0
Search vendor "Qemu" for product "Qemu" and version "1.0"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.0
Search vendor "Qemu" for product "Qemu" and version "1.0"
rc1
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.0
Search vendor "Qemu" for product "Qemu" and version "1.0"
rc2
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.0
Search vendor "Qemu" for product "Qemu" and version "1.0"
rc3
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.0
Search vendor "Qemu" for product "Qemu" and version "1.0"
rc4
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.0.1
Search vendor "Qemu" for product "Qemu" and version "1.0.1"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.1
Search vendor "Qemu" for product "Qemu" and version "1.1"
-
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.1
Search vendor "Qemu" for product "Qemu" and version "1.1"
rc1
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.1
Search vendor "Qemu" for product "Qemu" and version "1.1"
rc2
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.1
Search vendor "Qemu" for product "Qemu" and version "1.1"
rc3
Affected
Qemu
Search vendor "Qemu"
Qemu
Search vendor "Qemu" for product "Qemu"
1.1
Search vendor "Qemu" for product "Qemu" and version "1.1"
rc4
Affected