{ "id": "CVE-2015-8615", "sourceIdentifier": "cve@mitre.org", "published": "2016-01-08T19:59:17.350", "lastModified": "2016-11-28T19:48:20.313", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ)." }, { "lang": "es", "value": "La funci\u00f3n hvm_set_callback_via en arch/x86/hvm/irq.c en Xen 4.6 no limita el n\u00famero de mensajes de la consola de printk cuando inicia sesi\u00f3n el nuevo m\u00e9todo de llamada de retorno, lo que permite a usuarios del SO invitados de HVM locales provocar una denegaci\u00f3n de servicio a trav\u00e9s de un gran n\u00famero de cambios en el m\u00e9todo de llamada de retorno (HVM_PARAM_CALLBACK_IRQ)." } ], "metrics": { "cvssMetricV30": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 5.0, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 3.1, "impactScore": 1.4 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1 }, "baseSeverity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-254" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*", "matchCriteriaId": "4B6F7CE9-C409-4D88-9A99-B21420633F45" } ] } ] } ], "references": [ { "url": "http://www.securityfocus.com/bid/79644", "source": "cve@mitre.org" }, { "url": "http://www.securitytracker.com/id/1034512", "source": "cve@mitre.org" }, { "url": "http://xenbits.xen.org/xsa/advisory-169.html", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] } ] }