CVE-2014-7155

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.

CVSS v2.0 5.8 MEDIUM

5.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 6.5 / Impact : 6.4

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	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/61858
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
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/61858
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:xen:xen::::::::
	cpe:2.3:o:xen:xen:3.0.2:::::::*
	cpe:2.3:o:xen:xen:3.0.3:::::::*
	cpe:2.3:o:xen:xen:3.0.4:::::::*
	cpe:2.3:o:xen:xen:3.1.3:::::::*
	cpe:2.3:o:xen:xen:3.1.4:::::::*
	cpe:2.3:o:xen:xen:3.2.0:::::::*
	cpe:2.3:o:xen:xen:3.2.1:::::::*
	cpe:2.3:o:xen:xen:3.2.2:::::::*
	cpe:2.3:o:xen:xen:3.2.3:::::::*
	cpe:2.3:o:xen:xen:3.3.0:::::::*
	cpe:2.3:o:xen:xen:3.3.1:::::::*
	cpe:2.3:o:xen:xen:3.3.2:::::::*
	cpe:2.3:o:xen:xen:3.4.0:::::::*
	cpe:2.3:o:xen:xen:3.4.1:::::::*
	cpe:2.3:o:xen:xen:3.4.2:::::::*
	cpe:2.3:o:xen:xen:3.4.3:::::::*
	cpe:2.3:o:xen:xen:3.4.4:::::::*
	cpe:2.3:o:xen:xen:4.0.0:::::::*
	cpe:2.3:o:xen:xen:4.0.1:::::::*
	cpe:2.3:o:xen:xen:4.0.2:::::::*
	cpe:2.3:o:xen:xen:4.0.3:::::::*
	cpe:2.3:o:xen:xen:4.0.4:::::::*
	cpe:2.3:o:xen:xen:4.1.0:::::::*
	cpe:2.3:o:xen:xen:4.1.1:::::::*
	cpe:2.3:o:xen:xen:4.1.2:::::::*
	cpe:2.3:o:xen:xen:4.1.3:::::::*
	cpe:2.3:o:xen:xen:4.1.4:::::::*
	cpe:2.3:o:xen:xen:4.1.5:::::::*
	cpe:2.3:o:xen:xen:4.1.6.1:::::::*
	cpe:2.3:o:xen:xen:4.2.0:::::::*
	cpe:2.3:o:xen:xen:4.2.1:::::::*
	cpe:2.3:o:xen:xen:4.2.2:::::::*
	cpe:2.3:o:xen:xen:4.2.3:::::::*
	cpe:2.3:o:xen:xen:4.3.0:::::::*
	cpe:2.3:o:xen:xen:4.3.1:::::::*
	cpe:2.3:o:xen:xen:4.4.0:::::::*
	cpe:2.3:o:xen:xen:4.4.0:rc1::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:19:::::::*
	cpe:2.3:o:fedoraproject:fedora:20:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:opensuse:opensuse:12.3:::::::*
	cpe:2.3:o:opensuse:opensuse:13.1:::::::*

History

21 Nov 2024, 02:16

Type	Values Removed	Values Added
References	~~() http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html - Third Party Advisory~~	() http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html - Third Party Advisory
References	~~() http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html - Third Party Advisory~~	() http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html - Third Party Advisory
References	~~() http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html - Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html - Third Party Advisory
References	~~() http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html - Third Party Advisory~~	() http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html - Third Party Advisory
References	~~() http://secunia.com/advisories/61858 -~~	() http://secunia.com/advisories/61858 -
References	~~() http://secunia.com/advisories/61890 -~~	() http://secunia.com/advisories/61890 -
References	~~() http://security.gentoo.org/glsa/glsa-201412-42.xml -~~	() http://security.gentoo.org/glsa/glsa-201412-42.xml -
References	~~() http://support.citrix.com/article/CTX200218 - Third Party Advisory~~	() http://support.citrix.com/article/CTX200218 - Third Party Advisory
References	~~() http://www.debian.org/security/2014/dsa-3041 - Third Party Advisory~~	() http://www.debian.org/security/2014/dsa-3041 - Third Party Advisory
References	~~() http://www.securityfocus.com/bid/70057 - Third Party Advisory, VDB Entry~~	() http://www.securityfocus.com/bid/70057 - Third Party Advisory, VDB Entry
References	~~() http://www.securitytracker.com/id/1030888 - Third Party Advisory, VDB Entry~~	() http://www.securitytracker.com/id/1030888 - Third Party Advisory, VDB Entry
References	~~() http://xenbits.xen.org/xsa/advisory-105.html - Patch, Vendor Advisory~~	() http://xenbits.xen.org/xsa/advisory-105.html - Patch, Vendor Advisory

Information

Published : 2014-10-02 14:55

Updated : 2025-04-12 10:46

NVD link : CVE-2014-7155

Mitre link : CVE-2014-7155

CVE.ORG link : CVE-2014-7155

JSON object : View

Products Affected

debian

debian_linux

opensuse

opensuse

xen

fedoraproject

fedora

CWE

CWE-264

Permissions, Privileges, and Access Controls

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"cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-105.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://secunia.com/advisories/61858", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://secunia.com/advisories/61890", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://security.gentoo.org/glsa/glsa-201412-42.xml", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://support.citrix.com/article/CTX200218", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2014/dsa-3041", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/70057", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1030888", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://xenbits.xen.org/xsa/advisory-105.html", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", 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"cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C014033-2C0A-4484-9390-1C68583957DD", "versionEndIncluding": "4.4.0"}, {"criteria": "cpe:2.3:o:xen:xen:3.0.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5D62197-4FF7-4B73-8DC6-6E9344AF7CAC"}, {"criteria": "cpe:2.3:o:xen:xen:3.0.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "44CAE6A7-9817-472C-B1C6-3FF196304D08"}, {"criteria": "cpe:2.3:o:xen:xen:3.0.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E96BB7DE-0A6A-4418-A879-159F5FF88615"}, {"criteria": "cpe:2.3:o:xen:xen:3.1.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7568820A-ED66-47DF-A9B0-27A474D6C2C6"}, {"criteria": "cpe:2.3:o:xen:xen:3.1.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D8C046D-BE62-43BA-9F50-B4D383475EA8"}, {"criteria": "cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B81B6EEB-D01E-432D-AEBF-707409741C0A"}, {"criteria": 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5.8 /10