Vulnerability Details : CVE-2017-10922
The grant-table feature in Xen through 4.8.x mishandles MMIO region grant references, which allows guest OS users to cause a denial of service (loss of grant trackability), aka XSA-224 bug 3.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-10922
Probability of exploitation activity in the next 30 days: 0.47%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 72 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-10922
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-10922
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-10922
-
https://security.gentoo.org/glsa/201710-17
Xen: Multiple vulnerabilities (GLSA 201710-17) — Gentoo security
-
http://www.debian.org/security/2017/dsa-3969
Debian -- Security Information -- DSA-3969-1 xen
-
https://security.gentoo.org/glsa/201708-03
Gentoo Linux — Error 404 (Not Found)
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https://xenbits.xen.org/xsa/advisory-224.html
XSA-224 - Xen Security AdvisoriesPatch;Vendor Advisory
-
http://www.securitytracker.com/id/1038734
Xen Grant Table Mapping Bugs Let Local Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTracker
Products affected by CVE-2017-10922
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*