CVE-2016-3961 Information

Description

Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.

CVSS Vector

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

Reference

http://www.debian.org/security/2016/dsa-3607 http://www.securityfocus.com/bid/86068 http://www.securitytracker.com/id/1035569 http://www.ubuntu.com/usn/USN-3001-1 http://www.ubuntu.com/usn/USN-3002-1 http://www.ubuntu.com/usn/USN-3003-1 http://www.ubuntu.com/usn/USN-3004-1 http://www.ubuntu.com/usn/USN-3005-1 http://www.ubuntu.com/usn/USN-3006-1 http://www.ubuntu.com/usn/USN-3007-1 http://www.ubuntu.com/usn/USN-3049-1 http://www.ubuntu.com/usn/USN-3050-1 http://xenbits.xen.org/xsa/advisory-174.html http://xenbits.xen.org/xsa/xsa174.patch

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5