CVE-2010-4255

xen: 64-bit PV xen guest can crash host by accessing hypervisor per-domain memory area

Severity Score

6.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.

La función fixup_page_fault en arch/x86/traps.c en Xen v.4.0.1 y anteriores sobre plataformas 64-bit, cuando se activa la paravirtualización, no verifica que el modo kernel está usado para llamar a la función handle_gdt_ldt_mapping_fault, lo que permite a los usuarios invitados del sistema operativo provocar una denegación de servicio (host OS BUG_ON) a través de un acceso de memoria manipulado.

*Credits: N/A

CVSS Scores

NISTv2 6.1

Attack Vector

Adjacent

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

2010-11-16 CVE Reserved
2011-01-25 CVE Published
2023-03-07 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (10)

URL	Tag	Source
http://secunia.com/advisories/42884	Third Party Advisory
http://secunia.com/advisories/46397	Third Party Advisory
http://www.securityfocus.com/archive/1/520102/100/0/threaded	Mailing List
http://www.vmware.com/security/advisories/VMSA-2011-0012.html	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
http://lists.xensource.com/archives/html/xen-devel/2010-11/msg01650.html	2018-10-10
http://openwall.com/lists/oss-security/2010/11/30/5	2018-10-10
http://openwall.com/lists/oss-security/2010/11/30/8	2018-10-10
https://bugzilla.redhat.com/show_bug.cgi?id=658155	2011-01-13

URL	Date	SRC
http://www.redhat.com/support/errata/RHSA-2011-0017.html	2018-10-10
https://access.redhat.com/security/cve/CVE-2010-4255	2011-01-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				<= 4.0.1 Search vendor "Citrix" for product "Xen" and version " <= 4.0.1"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.0.2 Search vendor "Citrix" for product "Xen" and version "3.0.2"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.0.3 Search vendor "Citrix" for product "Xen" and version "3.0.3"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.0.4 Search vendor "Citrix" for product "Xen" and version "3.0.4"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.1.2 Search vendor "Citrix" for product "Xen" and version "3.1.2"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.1.3 Search vendor "Citrix" for product "Xen" and version "3.1.3"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.1.4 Search vendor "Citrix" for product "Xen" and version "3.1.4"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.2.0 Search vendor "Citrix" for product "Xen" and version "3.2.0"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.2.1 Search vendor "Citrix" for product "Xen" and version "3.2.1"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.2.2 Search vendor "Citrix" for product "Xen" and version "3.2.2"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.2.3 Search vendor "Citrix" for product "Xen" and version "3.2.3"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.3.0 Search vendor "Citrix" for product "Xen" and version "3.3.0"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.3.1 Search vendor "Citrix" for product "Xen" and version "3.3.1"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.3.2 Search vendor "Citrix" for product "Xen" and version "3.3.2"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.4.0 Search vendor "Citrix" for product "Xen" and version "3.4.0"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.4.1 Search vendor "Citrix" for product "Xen" and version "3.4.1"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.4.2 Search vendor "Citrix" for product "Xen" and version "3.4.2"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				3.4.3 Search vendor "Citrix" for product "Xen" and version "3.4.3"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				4.0.0 Search vendor "Citrix" for product "Xen" and version "4.0.0"		-		Affected