CVE-2016-3157
Xen Linux Kernel IOPL Context-Switching Vulnerability
Description
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.
INFO
Published Date :
April 12, 2016, 4:59 p.m.
Last Modified :
Dec. 3, 2016, 3:26 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2016-3157 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-3157.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-3157 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-3157 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 03, 2016
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1035308 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 01, 2016
Action Type Old Value New Value Added Reference http://www.ubuntu.com/usn/USN-2968-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2969-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2971-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2971-2 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2970-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2971-3 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2968-2 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/84594 [No Types Assigned] Added Reference http://www.debian.org/security/2016/dsa-3607 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 04, 2016
Action Type Old Value New Value Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html -
Modified Analysis by [email protected]
Jul. 15, 2016
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR *cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* -
CVE Translated by [email protected]
Jul. 14, 2016
Action Type Old Value New Value Removed Translation 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 del SO locales invitados obtener privilegios, provocar una denegación de servicio (caída de SO invitado) u obtener información sensible aprovechando el puerto de acceso I/O. Added Translation 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. -
CVE Modified by [email protected]
Jul. 14, 2016
Action Type Old Value New Value Changed Description 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 guest local OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. 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. Added Reference http://www.ubuntu.com/usn/USN-2997-1 Added Reference http://www.ubuntu.com/usn/USN-2996-1 -
Modified Analysis by [email protected]
Apr. 25, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://xenbits.xen.org/xsa/advisory-171.html No Types Assigned http://xenbits.xen.org/xsa/advisory-171.html Advisory, Patch Added CWE CWE-264 -
Initial Analysis by [email protected]
Apr. 14, 2016
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 14, 2016
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 14, 2016
Action Type Old Value New Value Changed Description 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 guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. 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 guest local OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-3157 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-3157
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26165
percentile