CVE-2015-2756

{"id": "CVE-2015-2756", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2015-04-01T14:59:08.757", "references": [{"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html", "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html", "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html", "source": "cve@mitre.org"}, {"url": "http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html", "source": "cve@mitre.org"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html", "source": "cve@mitre.org"}, {"url": "http://support.citrix.com/article/CTX201145", "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2015/dsa-3259", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/72577", "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1031998", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2608-1", "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-126.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.gentoo.org/glsa/201504-04", "source": "cve@mitre.org"}, {"url": "https://support.citrix.com/article/CTX206006", "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://support.citrix.com/article/CTX201145", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2015/dsa-3259", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/72577", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1031998", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-2608-1", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://xenbits.xen.org/xsa/advisory-126.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/201504-04", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.citrix.com/article/CTX206006", "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": "QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response."}, {"lang": "es", "value": "QEMU, utilizado en Xen 3.3.x hasta 4.5.x, no restringe correctamente el acceso a los registros de comandos PCI, lo que podr\u00eda permitir a usuarios locales invitados de HVM causar una denegaci\u00f3n de servicio (non-maskable interrupt (NMI) y ca\u00edda de anfitri\u00f3n) mediante la deshabilitaci\u00f3n de (1) la memoria o (2) la decodificaci\u00f3n I/O para un dispositivo PCI Express y posteriormente accediendo al dispositivo, lo que provoca una respuesta Unsupported Request (UR)."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"}, {"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF948E6A-07BE-4C7D-8A98-002E89D35F4D"}, {"criteria": "cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C0E23B94-1726-4F63-84BB-8D83FAB156D7"}, {"criteria": "cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C76124AB-4E3D-4BE0-AAEA-7FC05868E2FB"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1044792C-D544-457C-9391-4F3B5BAB978D"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A40F356B-4F5F-485D-A53A-8CE4629D6931"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90CCECD0-C0F9-45A8-8699-64428637EBCA"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": 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"cve@mitre.org"}