CVE-2016-3158
Xen AMD64 X86 OS Xstate Information Leak
Description
The xrstor function in arch/x86/xstate.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
INFO
Published Date :
April 13, 2016, 4:59 p.m.
Last Modified :
Dec. 3, 2016, 3:26 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
2.0
Affected Products
The following products are affected by CVE-2016-3158
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2016-3158.
| URL | Resource |
|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html | Third Party Advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html | Third Party Advisory |
| http://support.citrix.com/article/CTX209443 | |
| http://www.debian.org/security/2016/dsa-3554 | |
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | Vendor Advisory |
| http://www.securityfocus.com/bid/85714 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1035435 | Third Party Advisory VDB Entry |
| http://xenbits.xen.org/xsa/advisory-172.html | Vendor Advisory |
| http://xenbits.xen.org/xsa/xsa172-4.3.patch | Patch |
| http://xenbits.xen.org/xsa/xsa172.patch | Patch |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-3158 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-3158 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://support.citrix.com/article/CTX209443 [No Types Assigned] Added Reference http://www.debian.org/security/2016/dsa-3554 [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 12, 2016
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* (and previous) Configuration 1 OR *cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:* *cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html Third Party Advisory Changed Reference Type http://www.securitytracker.com/id/1035435 No Types Assigned http://www.securitytracker.com/id/1035435 Third Party Advisory, VDB Entry Changed Reference Type http://www.securityfocus.com/bid/85714 No Types Assigned http://www.securityfocus.com/bid/85714 Third Party Advisory, VDB Entry Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html Third Party Advisory Changed Reference Type http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html No Types Assigned http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory -
CVE Modified by [email protected]
Sep. 09, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/85714 Added Reference http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html -
Modified Analysis by [email protected]
Apr. 20, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* (and previous) Added CVSS V2 (AV:L/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html No Types Assigned http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html Advisory Changed Reference Type http://xenbits.xen.org/xsa/xsa172.patch No Types Assigned http://xenbits.xen.org/xsa/xsa172.patch Patch Changed Reference Type http://xenbits.xen.org/xsa/xsa172-4.3.patch No Types Assigned http://xenbits.xen.org/xsa/xsa172-4.3.patch Patch Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html No Types Assigned http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html Advisory Changed Reference Type http://xenbits.xen.org/xsa/advisory-172.html No Types Assigned http://xenbits.xen.org/xsa/advisory-172.html Advisory Added CWE CWE-284 Added CWE CWE-200 -
Initial Analysis by [email protected]
Apr. 15, 2016
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-3158 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-2016-3158
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.13 }} -0.02%
score
0.48744
percentile