// For flags

CVE-2020-11741

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.

Se detectó un problema en xenoprof en Xen versiones hasta 4.13.x, que permitía a usuarios invitados del Sistema Operativo (con perfiles activos) obtener información confidencial sobre otros invitados, causar una denegación de servicio o posiblemente alcanzar privilegios. Para aquellos invitados a los que el administrador habilitó la creación de perfiles "active", el código xenoprof usa la estructura de anillo compartida de Xen estándar. Desafortunadamente, este código no trató al invitado como un adversario potencial: confía en que el invitado no modificará la información del tamaño del búfer ni modificará los punteros de cabeza y cola de forma inesperada. Esto puede bloquear el host (DoS). La escalada de privilegios no puede ser descartada.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-04-14 CVE Reserved
  • 2020-04-14 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-909: Missing Initialization of Resource
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
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<= 4.13.0
Search vendor "Xen" for product "Xen" and version " <= 4.13.0"
-
Affected
Xen
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Xen
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4.13.0
Search vendor "Xen" for product "Xen" and version "4.13.0"
rc1
Affected
Xen
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Xen
Search vendor "Xen" for product "Xen"
4.13.0
Search vendor "Xen" for product "Xen" and version "4.13.0"
rc2
Affected
Fedoraproject
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Fedora
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30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Fedoraproject
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Fedora
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31
Search vendor "Fedoraproject" for product "Fedora" and version "31"
-
Affected
Fedoraproject
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Fedora
Search vendor "Fedoraproject" for product "Fedora"
32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected
Debian
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Debian Linux
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10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Opensuse
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Leap
Search vendor "Opensuse" for product "Leap"
15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected