CVE-2011-1583

xen: insufficiencies in pv kernel image validation

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read in the loader involving unspecified length fields.

Múltiples desbordamientos de entero en tools/libxc/xc_dom_bzimageloader.c en Xen v3.2, v3.3, v4.0, y v4.1 permite a usuarios locales provocar una denegación de servicio y posiblemente ejecutar código de su elección a través de invitados "paravirtualizados" manipulados en la imagen del kernel que dispara (1) un desbordamiento de búfer durante la descompresión de bucle o (2) una lectura fuera de límites en el cargador envolviendo un campo de longitud no especificada.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

High

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-05 CVE Reserved
2011-08-12 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-189: Numeric Errors

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://lists.xensource.com/archives/html/xen-devel/2011-05/msg00483.html	2011-08-24
http://lists.xensource.com/archives/html/xen-devel/2011-05/msg00491.html	2011-08-24

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-0496.html	2011-08-24
https://access.redhat.com/security/cve/CVE-2011-1583	2011-05-09
https://bugzilla.redhat.com/show_bug.cgi?id=696927	2011-05-09

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"				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"				3.3.0 Search vendor "Citrix" for product "Xen" and version "3.3.0"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				4.0.0 Search vendor "Citrix" for product "Xen" and version "4.0.0"		-		Affected
Citrix Search vendor "Citrix"		Xen Search vendor "Citrix" for product "Xen"				4.1.0 Search vendor "Citrix" for product "Xen" and version "4.1.0"		-		Affected