// For flags

CVE-2011-2901

kernel: xen: off-by-one shift in x86_64 __addr_ok()

Severity Score

5.5
*CVSS v2

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.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-07-27 CVE Reserved
  • 2011-09-07 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-193: Off-by-one Error
  • CWE-399: Resource Management Errors
CAPEC
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