CVE-2012-6036

Gentoo Linux Security Advisory 201309-24

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The (1) memc_save_get_next_page, (2) tmemc_restore_put_page and (3) tmemc_restore_flush_page functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 do not check for negative id pools, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or possibly execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

Las funciones (1) memc_save_get_next_page, (2) tmemc_restore_put_page y (3) tmemc_restore_flush_page en el Transcendent Memory (TMEM) en Xen v4.0, v4.1, y v4.2 no comprueba los pools de id negativos, lo que permite a usuarios del SO de invitado provocar una denegación de servicio (corrupción de memoria y caída del host) o posiblemente ejecutar código arbitrario a través de vectores no especificados. NOTA: este problema se publicó originalmente como parte de CVE-2012-3497, que era demasiado general; CVE-2012-3497 se ha dividido en este ID y otros.

Multiple vulnerabilities have been found in Xen, allowing attackers on a Xen Virtual Machine to execute arbitrary code, cause Denial of Service, or gain access to data on the host. Versions less than 4.2.2-r1 are affected.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-11-23 CVE Reserved
2012-11-23 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (12)

URL	Tag	Source
http://osvdb.org/85199	Vdb Entry
http://secunia.com/advisories/55082	Third Party Advisory
http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2012/09/05/8	Mailing List
http://www.securityfocus.com/bid/55410	Vdb Entry
http://www.securitytracker.com/id?1027482	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/78268	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/80326	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html	2017-08-29
http://secunia.com/advisories/50472	2017-08-29
http://security.gentoo.org/glsa/glsa-201309-24.xml	2017-08-29
https://security.gentoo.org/glsa/201604-03	2017-08-29

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"				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"				4.1.0 Search vendor "Xen" for product "Xen" and version "4.1.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.0 Search vendor "Xen" for product "Xen" and version "4.2.0"		-		Affected