6.7
MEDIUM
CVE-2016-7154
Xen Use-after-free Denial of Service and Elevation of Privilege
Description

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

INFO

Published Date :

Sept. 21, 2016, 2:25 p.m.

Last Modified :

April 10, 2017, 1:59 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2016-7154 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.

ID Vendor Product Action
1 Xen xen
References to Advisories, Solutions, and Tools

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-2016-7154 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-7154 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]

    Apr. 10, 2017

    Action Type Old Value New Value
    Added Reference http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 07, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2016/dsa-3663 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 23, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
  • CVE Translated by [email protected]

    Sep. 22, 2016

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Sep. 21, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:*
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.securityfocus.com/bid/92863 No Types Assigned http://www.securityfocus.com/bid/92863 Third Party Advisory, VDB Entry
    Changed Reference Type http://support.citrix.com/article/CTX216071 No Types Assigned http://support.citrix.com/article/CTX216071 Third Party Advisory
    Changed Reference Type http://www.securitytracker.com/id/1036754 No Types Assigned http://www.securitytracker.com/id/1036754 Third Party Advisory, VDB Entry
    Changed Reference Type http://xenbits.xen.org/xsa/xsa188.patch No Types Assigned http://xenbits.xen.org/xsa/xsa188.patch Patch
    Changed Reference Type http://xenbits.xen.org/xsa/advisory-188.html No Types Assigned http://xenbits.xen.org/xsa/advisory-188.html Vendor Advisory, Patch
    Added CWE CWE-416
  • Initial Analysis by [email protected]

    Sep. 21, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-7154 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-2016-7154 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.01%

score

0.29791

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability