CVE-2015-7971

Debian Security Advisory 3414-1

Severity Score

6.2

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

Xen 3.2.x hasta la versión 4.6.x no limita el número de mensajes de la consola printk cuando incia sesión cierto pmu y hypercalls de perfilado, lo que permite a invitados locales provocar una denegación de servicio a través de una secuencia de hypercalls manipuladas (1) HYPERCALL_xenoprof_op, que no son manejadas adecuadamente en la función do_xenoprof_op en common/xenoprof.c o (2) HYPERVISOR_xenpmu_op, que no son manejadas adecuadamente en la función do_xenpmu_op en arch/x86/cpu/vpmu.c.

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

None

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

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-19: Data Processing Errors

CAPEC

References (10)

URL	Tag	Source
http://support.citrix.com/article/CTX202404	X_refsource_confirm
http://www.securityfocus.com/bid/77363	Vdb Entry
http://www.securitytracker.com/id/1034035	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html	2018-10-30
http://www.debian.org/security/2015/dsa-3414	2018-10-30
http://xenbits.xen.org/xsa/advisory-152.html	2018-10-30
https://security.gentoo.org/glsa/201604-03	2018-10-30

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"				3.2.0 Search vendor "Xen" for product "Xen" and version "3.2.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.2.1 Search vendor "Xen" for product "Xen" and version "3.2.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.2.2 Search vendor "Xen" for product "Xen" and version "3.2.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.2.3 Search vendor "Xen" for product "Xen" and version "3.2.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.3.0 Search vendor "Xen" for product "Xen" and version "3.3.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.3.1 Search vendor "Xen" for product "Xen" and version "3.3.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.3.2 Search vendor "Xen" for product "Xen" and version "3.3.2"		-		Affected
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
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.0 Search vendor "Xen" for product "Xen" and version "4.0.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.1 Search vendor "Xen" for product "Xen" and version "4.0.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.2 Search vendor "Xen" for product "Xen" and version "4.0.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.3 Search vendor "Xen" for product "Xen" and version "4.0.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.4 Search vendor "Xen" for product "Xen" and version "4.0.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.0 Search vendor "Xen" for product "Xen" and version "4.1.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.1 Search vendor "Xen" for product "Xen" and version "4.1.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.2 Search vendor "Xen" for product "Xen" and version "4.1.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.3 Search vendor "Xen" for product "Xen" and version "4.1.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.4 Search vendor "Xen" for product "Xen" and version "4.1.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.5 Search vendor "Xen" for product "Xen" and version "4.1.5"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.6.1 Search vendor "Xen" for product "Xen" and version "4.1.6.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.0 Search vendor "Xen" for product "Xen" and version "4.2.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.1 Search vendor "Xen" for product "Xen" and version "4.2.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.2 Search vendor "Xen" for product "Xen" and version "4.2.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.3 Search vendor "Xen" for product "Xen" and version "4.2.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.0 Search vendor "Xen" for product "Xen" and version "4.3.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.1 Search vendor "Xen" for product "Xen" and version "4.3.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.2 Search vendor "Xen" for product "Xen" and version "4.3.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.4 Search vendor "Xen" for product "Xen" and version "4.3.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.4.0 Search vendor "Xen" for product "Xen" and version "4.4.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.4.1 Search vendor "Xen" for product "Xen" and version "4.4.1"		-		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
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.6.0 Search vendor "Xen" for product "Xen" and version "4.6.0"		-		Affected