National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-7155 Detail

Current Description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:A/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 6.5


Access Vector (AV): Local_Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
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://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html Third Party Advisory
http://secunia.com/advisories/61890
http://security.gentoo.org/glsa/glsa-201412-42.xml
http://support.citrix.com/article/CTX200218 Third Party Advisory
http://www.debian.org/security/2014/dsa-3041 Third Party Advisory
http://www.securityfocus.com/bid/70057 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1030888 Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-105.html Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

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

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:xen:xen:3.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.0.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.0.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.1.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.4.0
 cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

11 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-7155
NVD Published Date:
10/02/2014
NVD Last Modified:
10/30/2018