CVE-2015-5166

Severity Score

7.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.

Vulnerabilidad de uso después de liberación en la memoria en QEMU en Xen 4.5.x y versiones anteriores, no desconecta completamente los dispositivos de bloque emulados, lo que permite a usuarios invitados HVM locales obtener privilegios desconectando un dispositivo de bloque dos veces.

*Credits: N/A

CVSS Scores

NISTv2 7.2

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2015-08-12 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/76152	Vdb Entry
http://www.securitytracker.com/id/1033175	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://xenbits.xen.org/xsa/advisory-139.html	2018-10-30

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				21 Search vendor "Fedoraproject" for product "Fedora" and version "21"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				22 Search vendor "Fedoraproject" for product "Fedora" and version "22"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				<= 4.5.0 Search vendor "Xen" for product "Xen" and version " <= 4.5.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.5.1 Search vendor "Xen" for product "Xen" and version "4.5.1"		-		Affected