CVE-2014-7155

{"id": "CVE-2014-7155", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.8, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2014-10-02T14:55:05.120", "references": [{"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html", "tags": ["Third Party Advisory"], "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"}, {"url": "http://support.citrix.com/article/CTX200218", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2014/dsa-3041", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/70057", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1030888", "tags": ["Third Party Advisory", "VDB Entry"], "source": "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", "value": "CWE-264"}]}], "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."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": 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