CVE-2016-6258

8.8 HIGH

Published: August 02, 2016 Modified: May 06, 2026

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://support.citrix.com/article/CTX214954

Source: cve@mitre.org

Vendor Advisory

http://www.debian.org/security/2016/dsa-3633

Source: cve@mitre.org

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

Source: cve@mitre.org

Release Notes

http://www.securityfocus.com/bid/92131

Source: cve@mitre.org

Third Party Advisory

http://www.securitytracker.com/id/1036446

Source: cve@mitre.org

Third Party Advisory

http://xenbits.xen.org/xsa/advisory-182.html

Source: cve@mitre.org

Mitigation Patch Vendor Advisory

http://xenbits.xen.org/xsa/xsa182-4.5.patch

Source: cve@mitre.org

Patch

http://xenbits.xen.org/xsa/xsa182-4.6.patch

Source: cve@mitre.org

Patch

http://xenbits.xen.org/xsa/xsa182-unstable.patch

Source: cve@mitre.org

Patch

https://security.gentoo.org/glsa/201611-09

Source: cve@mitre.org

http://support.citrix.com/article/CTX214954