CVE-2016-3157
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 __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
La función __switch_to en arch/x86/kernel/process_64.c en el kernel de Linux no sustituye correctamente el conmutador de contexto IOPL en invitados 64-bit PV Xen, lo que permite a usuarios locales del SO invitado obtener privilegios, provocar una denegación de servicio (caída del SO invitado), u obtener información sensible aprovechando el puerto de acceso I/O.
*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
- 2016-03-15 CVE Reserved
- 2016-04-12 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html | X_refsource_confirm |
|
| http://www.securityfocus.com/bid/84594 | Vdb Entry | |
| http://www.securitytracker.com/id/1035308 | Vdb Entry |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-171.html | 2016-12-03 |
| URL | Date | SRC |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3607 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2968-1 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2968-2 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2969-1 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2970-1 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2971-1 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2971-2 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2971-3 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2996-1 | 2016-12-03 | |
| http://www.ubuntu.com/usn/USN-2997-1 | 2016-12-03 |
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" | 4.0.0 Search vendor "Xen" for product "Xen" and version "4.0.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
Affected
| ||||||