CVE-2017-14319

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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 7.2 HIGH

8.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://xenbits.xen.org/xsa/advisory-234.html	Patch Vendor Advisory
http://www.securitytracker.com/id/1039351	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/100819	Third Party Advisory VDB Entry
https://support.citrix.com/article/CTX227185
https://www.debian.org/security/2017/dsa-4050
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

Information

Published : 2017-09-12 08:29

Updated : 2019-10-02 17:03

NVD link : CVE-2017-14319

Mitre link : CVE-2017-14319

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

xen

xen

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