Vulnerability CVE-2018-19963
Published: 2018-12-07   Modified: 2018-12-08

Description:
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

Type:

CWE-617

 (Reachable Assertion)

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
XEN -> XEN 

 References:
http://www.securityfocus.com/bid/106182
https://xenbits.xen.org/xsa/advisory-276.html
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