Vulnerability Name:

CCN-67554

Published:2011-05-19
Updated:2011-05-19
Summary:QEMU and KVM (Kernel-based Virtual Machine) could allow a local attacker to gain elevated privileges, caused by the PIIX4 emulation allowing non-hotpluggable PCI devices to be unplugged. A local attacker could exploit this vulnerability to execute arbitrary code on the system with elevated privileges.
CVSS v3 Severity:5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
3.4 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Consequences:Gain Privileges
References:Source: CCN
Type: QEMU Web page
QEMU

Source: CCN
Type: KVM Web page
Kernel Based Virtual Machine

Source: CCN
Type: Qemu-devel Mailing List, Thu, 19 May 2011 11:13:13 +0200
Ignore pci unplug requests for unpluggable devices

Source: CCN
Type: SA44458
Qemu PIIX4 Hotplug Vulnerability

Source: CCN
Type: SA44648
KVM qemu-kvm PIIX4 Hotplug Vulnerability

Source: CCN
Type: BID-47927
QEMU PIIX4 Hotplug Use After Free Remote Code Execution Vulnerability

Source: XF
Type: UNKNOWN
qemu-piix4-priv-escalation(67554)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:kvm_qumranet:kvm:10:*:*:*:*:*:*:*
  • OR cpe:/a:fabrice_bellard:qemu:0.8.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    kvm_qumranet kvm 10
    fabrice_bellard qemu 0.8.2