CVE-2020-17376

{"id": "CVE-2020-17376", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 2.8}]}, "published": "2020-08-26T19:15:14.580", "references": [{"url": "http://www.openwall.com/lists/oss-security/2020/08/25/4", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://launchpad.net/bugs/1890501", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.openstack.org/ossa/OSSA-2020-006.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-611"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected."}, {"lang": "es", "value": "Se detect\u00f3 un problema en la funci\u00f3n Guest.migrate en el archivo virt/libvirt/guest.py en OpenStack Nova versiones anteriores a 19.3.1, versiones 20.x anteriores a 20.3.1 y 21.0.0. Al realizar un reinicio suave de una instancia que se ha sometido previamente a una migraci\u00f3n en vivo, un usuario puede conseguir acceso a los dispositivos host de destino que comparten las mismas rutas que los dispositivos host a los que la m\u00e1quina virtual hace referencia anteriormente en el host de origen. Esto puede incluir dispositivos de bloque que se asignan a diferentes vol\u00famenes de Cinder tanto en el destino como en el origen. Solo est\u00e1n afectadas las implementaciones que permiten conexiones basadas en host (por ejemplo, dispositivos root y ef\u00edmeros)"}], "lastModified": "2020-09-14T19:00:49.090", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DDF22E2-609B-449C-92C3-15F65182CD1F", "versionEndExcluding": "19.3.1"}, {"criteria": "cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3B0003D-FEEE-4C6A-A6F8-FE7AA8470AB7", "versionEndExcluding": "20.3.1", "versionStartIncluding": "20.0.0"}, {"criteria": "cpe:2.3:a:openstack:nova:21.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "57ACEF3D-345D-4744-B1EC-441FEF427FA1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}