CVE-2015-7970

Debian Security Advisory 3414-1

Severity Score

5.5

*CVSS v3

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.

Multiple security issues have been found in the Xen virtualisation solution, which may result in denial of service or information disclosure.

*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

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
2024-08-06 CVE Updated
2025-03-19 EPSS 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