National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-3961 Detail

Current 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.

Source:  MITRE
Description Last Modified:  07/18/2016
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-3961
NVD Published Date:
04/15/2016
NVD Last Modified:
11/28/2016