National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-8594 Detail

Current Description

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

Source:  MITRE
Description Last Modified:  09/28/2016
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.4 MEDIUM
Vector: (AV:N/AC:H/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 4.9


Access Vector (AV): Network
Access Complexity (AC): High
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3140 Third Party Advisory
http://www.securityfocus.com/bid/71149
http://xenbits.xen.org/xsa/advisory-109.html Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
https://security.gentoo.org/glsa/201504-04

Technical Details

Vulnerability Type (View All)

Change History

13 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-8594
NVD Published Date:
11/19/2014
NVD Last Modified:
09/07/2017