CVE-2015-7970

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

La función p2m_pod_emergency_sweep en arch/x86/mm/p2m-pod.c en Xen 3.4.x, 3.5,x y 3.6.x no es preferente, lo que permite a administradores invitados x86 HVM locales provocar una denegación de servicio (consumo de CPU y posiblemente reinicio) a través de contenidos de memoria manipulados que desencadena un 'time-consuming linear scan', relacionado con Populate-on-Demand.

*Credits: N/A

CVSS Scores

NISTv2 4.9

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-10-23 CVE Reserved
2015-10-30 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (10)

URL	Tag	Source
http://support.citrix.com/article/CTX202404	X_refsource_confirm
http://www.securityfocus.com/bid/77362	Vdb Entry
http://www.securitytracker.com/id/1034034	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html	2017-07-01
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html	2017-07-01
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html	2017-07-01
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html	2017-07-01
http://www.debian.org/security/2015/dsa-3414	2017-07-01
http://xenbits.xen.org/xsa/advisory-150.html	2017-07-01
https://security.gentoo.org/glsa/201604-03	2017-07-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.0 Search vendor "Xen" for product "Xen" and version "3.4.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.1 Search vendor "Xen" for product "Xen" and version "3.4.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.2 Search vendor "Xen" for product "Xen" and version "3.4.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.3 Search vendor "Xen" for product "Xen" and version "3.4.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.4 Search vendor "Xen" for product "Xen" and version "3.4.4"		-		Affected