10.0
CRITICAL
CVE-2017-10921
Xen Guest Privilege Escalation Denial of Service
Description

The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.

INFO

Published Date :

July 5, 2017, 1:29 a.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2017-10921 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

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-10921.

URL Resource
http://www.debian.org/security/2017/dsa-3969
http://www.securitytracker.com/id/1038734
https://security.gentoo.org/glsa/201708-03
https://security.gentoo.org/glsa/201710-17
https://xenbits.xen.org/xsa/advisory-224.html Patch Vendor Advisory

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-2017-10921 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-10921 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
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 CWE-119
  • CVE Modified by [email protected]

    Nov. 04, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2017/dsa-3969 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 19, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201710-17 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 22, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201708-03 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 11, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038734 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 10, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://xenbits.xen.org/xsa/advisory-224.html No Types Assigned https://xenbits.xen.org/xsa/advisory-224.html Patch, Vendor Advisory
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:* (and previous)
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.
Exploit Prediction

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

0.64 }} 0.00%

score

0.75960

percentile

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