{ "id": "CVE-2015-7835", "sourceIdentifier": "cve@mitre.org", "published": "2015-10-30T15:59:04.747", "lastModified": "2024-11-21T02:37:29.693", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping." }, { "lang": "es", "value": "La funci\u00f3n mod_l2_entry en arch/x86/mm.c en Xen 3.4 hasta la versi\u00f3n 4.6.x no valida correctamente las entradas de la tabla de paginaci\u00f3n de nivel 2, lo que permite a administradores invitados PV locales obtener privilegios a trav\u00e9s de un mapeo de superpage manipulado." } ], "metrics": { "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "baseScore": 7.2, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE" }, "baseSeverity": "HIGH", "exploitabilityScore": 3.9, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-20" }, { "lang": "en", "value": "CWE-264" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "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": 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"matchCriteriaId": "F784EF07-DBEC-492A-A0F4-F9F7B2551A0B" }, { "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:4.4.1:-:*:*:*:*:*:*", "matchCriteriaId": "A40F356B-4F5F-485D-A53A-8CE4629D6931" }, { "vulnerable": true, "criteria": "cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "90CCECD0-C0F9-45A8-8699-64428637EBCA" }, { "vulnerable": true, "criteria": "cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*", "matchCriteriaId": "F0ED340C-6746-471E-9F2D-19D62D224B7A" }, { "vulnerable": true, "criteria": "cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*", "matchCriteriaId": "4B6F7CE9-C409-4D88-9A99-B21420633F45" } ] } ] } ], "references": [ { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html", "source": "cve@mitre.org" }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html", "source": "cve@mitre.org" }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html", "source": "cve@mitre.org" }, { "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html", "source": "cve@mitre.org" }, { "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html", "source": "cve@mitre.org" }, { "url": "http://support.citrix.com/article/CTX202404", "source": "cve@mitre.org" }, { "url": "http://www.debian.org/security/2015/dsa-3390", "source": "cve@mitre.org" }, { "url": "http://www.securityfocus.com/bid/77366", "source": "cve@mitre.org" }, { "url": "http://www.securitytracker.com/id/1034032", "source": "cve@mitre.org" }, { "url": "http://xenbits.xen.org/xsa/advisory-148.html", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] }, { "url": "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] }, { "url": "https://security.gentoo.org/glsa/201604-03", "source": "cve@mitre.org" }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://support.citrix.com/article/CTX202404", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://www.debian.org/security/2015/dsa-3390", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://www.securityfocus.com/bid/77366", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://www.securitytracker.com/id/1034032", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "http://xenbits.xen.org/xsa/advisory-148.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ] }, { "url": "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ] }, { "url": "https://security.gentoo.org/glsa/201604-03", "source": "af854a3a-2127-422b-91ae-364da2661108" } ] }