fkie_cve-2014-7155
Vulnerability from fkie_nvd
Published
2014-10-02 14:55
Modified
2025-04-12 10:46
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| xen | xen | * | |
| xen | xen | 3.0.2 | |
| xen | xen | 3.0.3 | |
| xen | xen | 3.0.4 | |
| xen | xen | 3.1.3 | |
| xen | xen | 3.1.4 | |
| xen | xen | 3.2.0 | |
| xen | xen | 3.2.1 | |
| xen | xen | 3.2.2 | |
| xen | xen | 3.2.3 | |
| xen | xen | 3.3.0 | |
| xen | xen | 3.3.1 | |
| xen | xen | 3.3.2 | |
| xen | xen | 3.4.0 | |
| xen | xen | 3.4.1 | |
| xen | xen | 3.4.2 | |
| xen | xen | 3.4.3 | |
| xen | xen | 3.4.4 | |
| xen | xen | 4.0.0 | |
| xen | xen | 4.0.1 | |
| xen | xen | 4.0.2 | |
| xen | xen | 4.0.3 | |
| xen | xen | 4.0.4 | |
| xen | xen | 4.1.0 | |
| xen | xen | 4.1.1 | |
| xen | xen | 4.1.2 | |
| xen | xen | 4.1.3 | |
| xen | xen | 4.1.4 | |
| xen | xen | 4.1.5 | |
| xen | xen | 4.1.6.1 | |
| xen | xen | 4.2.0 | |
| xen | xen | 4.2.1 | |
| xen | xen | 4.2.2 | |
| xen | xen | 4.2.3 | |
| xen | xen | 4.3.0 | |
| xen | xen | 4.3.1 | |
| xen | xen | 4.4.0 | |
| xen | xen | 4.4.0 | |
| debian | debian_linux | 7.0 | |
| fedoraproject | fedora | 19 | |
| fedoraproject | fedora | 20 | |
| opensuse | opensuse | 12.3 | |
| opensuse | opensuse | 13.1 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0C014033-2C0A-4484-9390-1C68583957DD",
"versionEndIncluding": "4.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.0.2:*:*:*:*:*:*:*",
"matchCriteriaId": "E5D62197-4FF7-4B73-8DC6-6E9344AF7CAC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.0.3:*:*:*:*:*:*:*",
"matchCriteriaId": "44CAE6A7-9817-472C-B1C6-3FF196304D08",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.0.4:*:*:*:*:*:*:*",
"matchCriteriaId": "E96BB7DE-0A6A-4418-A879-159F5FF88615",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.1.3:*:*:*:*:*:*:*",
"matchCriteriaId": "7568820A-ED66-47DF-A9B0-27A474D6C2C6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.1.4:*:*:*:*:*:*:*",
"matchCriteriaId": "5D8C046D-BE62-43BA-9F50-B4D383475EA8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:*",
"matchCriteriaId": "B81B6EEB-D01E-432D-AEBF-707409741C0A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.2.1:*:*:*:*:*:*:*",
"matchCriteriaId": "2A4B60DE-A8C0-459E-A99C-6EF0D3264B75",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.2.2:*:*:*:*:*:*:*",
"matchCriteriaId": "A83F4F7E-53CF-4066-857B-2154D25979D8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.2.3:*:*:*:*:*:*:*",
"matchCriteriaId": "048E790E-B0A1-4504-9299-0B6D9CB0C509",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.3.0:*:*:*:*:*:*:*",
"matchCriteriaId": "EB157D09-B91B-486A-A9F7-C9BA75AE8823",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.3.1:*:*:*:*:*:*:*",
"matchCriteriaId": "FA95119D-EAF1-48D4-AE7C-0C4927D06CDF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.3.2:*:*:*:*:*:*:*",
"matchCriteriaId": "5D40E4E4-3FCB-4980-8DD2-49DDABCB398E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7F7D1B7E-C30F-430F-832D-2A405DA1F2D9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*",
"matchCriteriaId": "B7C1D0AD-B804-474C-96A3-988BADA0DAD2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*",
"matchCriteriaId": "1DCD1F05-9F96-40DD-B506-750E87306325",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*",
"matchCriteriaId": "25B6AE42-E1EB-47A8-8FAF-7A93A67EC67F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*",
"matchCriteriaId": "60BADA43-94D5-4E80-B5C8-D01A0249F13E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*",
"matchCriteriaId": "550223A9-B9F1-440A-8C25-9F0F76AF7301",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*",
"matchCriteriaId": "FC734D58-96E5-4DD2-8781-F8E0ADB96462",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*",
"matchCriteriaId": "62CEC1BF-1922-410D-BCBA-C58199F574C7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*",
"matchCriteriaId": "923F2C2B-4A65-4823-B511-D0FEB7C7FAB2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*",
"matchCriteriaId": "C1A24DED-B2EC-4D9C-9FA4-DD37EF3E3BFC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "0D532B60-C8DD-4A2F-9D05-E574D23EB754",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*",
"matchCriteriaId": "5D83CA8B-8E49-45FA-8FAB-C15052474542",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*",
"matchCriteriaId": "27537DF5-7E0F-463F-BA87-46E329EE07AC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*",
"matchCriteriaId": "3EA4F978-9145-4FE6-B4F9-15207E52C40A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*",
"matchCriteriaId": "22A995FD-9B7F-4DF0-BECF-4B086E470F1E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*",
"matchCriteriaId": "219597E2-E2D7-4647-8A7C-688B96300158",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*",
"matchCriteriaId": "65E55950-EACA-4209-B2A1-E09026FC6006",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*",
"matchCriteriaId": "8F0AF8EF-6FF6-4E22-B16E-82C9F90C6B00",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*",
"matchCriteriaId": "47640819-FC43-49ED-8A77-728C3D7255B3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*",
"matchCriteriaId": "2448537F-87AD-45C1-9FB0-7A49CA31BD76",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*",
"matchCriteriaId": "E36B2265-70E1-413B-A7CF-79D39E9ADCFB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*",
"matchCriteriaId": "BF948E6A-07BE-4C7D-8A98-002E89D35F4D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*",
"matchCriteriaId": "C0E23B94-1726-4F63-84BB-8D83FAB156D7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "1044792C-D544-457C-9391-4F3B5BAB978D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*",
"matchCriteriaId": "CF23B21B-594A-42E2-AF90-D5C4246B39A4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*",
"matchCriteriaId": "5991814D-CA77-4C25-90D2-DB542B17E0AD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*",
"matchCriteriaId": "FF47C9F0-D8DA-4B55-89EB-9B2C9383ADB9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*",
"matchCriteriaId": "DFBF430B-0832-44B0-AA0E-BA9E467F7668",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*",
"matchCriteriaId": "A10BC294-9196-425F-9FB0-B1625465B47F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "La funci\u00f3n x86_emulate en arch/x86/x86_emulate/x86_emulate.c en Xen 4.4.x y anteriores no comprueba debidamente los permisos del modo de supervisor, lo que permite a usuarios locales de HVM causar una denegaci\u00f3n de servicio (ca\u00edda del hu\u00e9sped) o ganar privilegios del medo del kernel del hu\u00e9sped a trav\u00e9s de vectores que involucran una instrucci\u00f3n (1) HLT, (2) LGDT, (3) LIDT, o (4) LMSW."
}
],
"id": "CVE-2014-7155",
"lastModified": "2025-04-12T10:46:40.837",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2014-10-02T14:55:05.120",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/61858"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/61890"
},
{
"source": "cve@mitre.org",
"url": "http://security.gentoo.org/glsa/glsa-201412-42.xml"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://support.citrix.com/article/CTX200218"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2014/dsa-3041"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/70057"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1030888"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://xenbits.xen.org/xsa/advisory-105.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html"
},
{
"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",
"tags": [
"Third Party Advisory"
],
"url": "http://support.citrix.com/article/CTX200218"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2014/dsa-3041"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/70057"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1030888"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://xenbits.xen.org/xsa/advisory-105.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…