CVE-2016-6258high
Description
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
References
http://support.citrix.com/article/CTX214954
http://www.debian.org/security/2016/dsa-3633
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/92131
http://www.securitytracker.com/id/1036446
http://xenbits.xen.org/xsa/advisory-182.html
http://xenbits.xen.org/xsa/xsa182-4.5.patch
http://xenbits.xen.org/xsa/xsa182-4.6.patch
Details
Source: MITRE
Published: 2016-08-02
Updated: 2017-07-01
Type: CWE-284
Risk Information
CVSS v2
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
CVSS v3
Base Score: 8.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Impact Score: 6
Exploitability Score: 2
Severity: HIGH