CVE-2011-2901
kernel: xen: off-by-one shift in x86_64 __addr_ok()
Severity Score
5.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.
Error de superación de límite (off-by-one) en la macro __addr_ok en Xen 3.3 y anteriores permite a administradores invitados locales 64 bit PV causar una denegación del servicio (caída del host) a través de hypercalls no especificadas que ignoran bits de direcciones virtuales.
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
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-07-27 CVE Reserved
- 2013-09-27 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-193: Off-by-one Error
- CWE-399: Resource Management Errors
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://secunia.com/advisories/55082 | Third Party Advisory | |
| http://www.openwall.com/lists/oss-security/2011/09/02/2 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2011-1212.html | 2023-02-13 | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | 2023-02-13 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=728042 | 2011-12-13 | |
| https://access.redhat.com/security/cve/CVE-2011-2901 | 2011-12-13 |
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" | <= 3.3.0 Search vendor "Xen" for product "Xen" and version " <= 3.3.0" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | 3.0.2 Search vendor "Xen" for product "Xen" and version "3.0.2" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | 3.0.3 Search vendor "Xen" for product "Xen" and version "3.0.3" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | 3.0.4 Search vendor "Xen" for product "Xen" and version "3.0.4" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | 3.1.3 Search vendor "Xen" for product "Xen" and version "3.1.3" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | 3.1.4 Search vendor "Xen" for product "Xen" and version "3.1.4" | - |
Affected
| ||||||
| 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
| ||||||