CVE-2016-9386
Severity Score
7.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
El emulador x86 en Xen no trata adecuadamente los segmentos NULL de x86 como inutilizable el acceso a memoria, lo que podría permitir a usuarios locales del HVM invitado obtener privilegios a través de vectores que implican valores de base/límite "inesperados".
*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
- 2016-11-17 CVE Reserved
- 2017-01-02 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/94471 | Third Party Advisory | |
| http://www.securitytracker.com/id/1037340 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-191.html | 2017-07-01 | |
| https://support.citrix.com/article/CTX218775 | 2017-07-01 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/201612-56 | 2017-07-01 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Citrix Search vendor "Citrix" | Xenserver Search vendor "Citrix" for product "Xenserver" | 6.0.2 Search vendor "Citrix" for product "Xenserver" and version "6.0.2" | - |
Affected
| ||||||
| Citrix Search vendor "Citrix" | Xenserver Search vendor "Citrix" for product "Xenserver" | 6.2.0 Search vendor "Citrix" for product "Xenserver" and version "6.2.0" | - |
Affected
| ||||||
| Citrix Search vendor "Citrix" | Xenserver Search vendor "Citrix" for product "Xenserver" | 6.5 Search vendor "Citrix" for product "Xenserver" and version "6.5" | - |
Affected
| ||||||
| Citrix Search vendor "Citrix" | Xenserver Search vendor "Citrix" for product "Xenserver" | 7.0 Search vendor "Citrix" for product "Xenserver" and version "7.0" | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | * | - |
Affected
| ||||||