National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-14319 Detail

Current Description

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.

Source:  MITRE
Description Last Modified:  09/12/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 2.0


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

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9


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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/100819 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039351 Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-234.html Patch Vendor Advisory
https://support.citrix.com/article/CTX227185
https://www.debian.org/security/2017/dsa-4050

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*    versions up to (including) 4.9.0

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-14319
NVD Published Date:
09/12/2017
NVD Last Modified:
11/29/2017