CVE-2014-3471

Gentoo Linux Security Advisory 201412-01

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Use-after-free vulnerability in hw/pci/pcie.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (QEMU instance crash) via hotplug and hotunplug operations of Virtio block devices.

Vulnerabilidad de uso de memoria previamente liberada en hw/pci/pcie.c en QEMU (también conocido como Quick Emulator) permite que usuarios invitados locales del sistema operativo provoquen una denegación de servicio (cierre inesperado de la instancia QEMU) mediante las operaciones hotplug y hotunplug de los dispositivos Virtio orientados a bloques.

Michael S. Tsirkin, Anthony Liguori, and Michael Roth discovered multiple issues with QEMU state loading after migration. An attacker able to modify the state data could use these issues to cause a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-05-14 CVE Reserved
2014-09-08 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/68145	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2014/06/23/4	2018-01-31
https://bugzilla.redhat.com/show_bug.cgi?id=1112271	2018-01-31
https://lists.gnu.org/archive/html/qemu-devel/2014-06/msg05283.html	2018-01-31

URL	Date	SRC
http://security.gentoo.org/glsa/glsa-201412-01.xml	2018-01-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				<= 2.1.2 Search vendor "Qemu" for product "Qemu" and version " <= 2.1.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.2 Search vendor "Qemu" for product "Qemu" and version "2.1.2"		r1		Affected