MEDIUM
Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.
http://www.debian.org/security/2017/dsa-3969
http://www.openwall.com/lists/oss-security/2017/08/15/3
http://www.securityfocus.com/bid/100346
http://www.securitytracker.com/id/1039175
http://xenbits.xen.org/xsa/advisory-228.html
https://bugzilla.redhat.com/show_bug.cgi?id=1477651
Source: MITRE
Published: 2017-08-24
Updated: 2019-05-06
Type: CWE-362
Base Score: 6.9
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Impact Score: 6
Exploitability Score: 1.1
Severity: HIGH