CVE-2019-20175

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html", "name": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html", "name": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html", "name": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html", "name": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.mail-archive.com/qemu-devel@nongnu.org/msg667396.html", "name": "https://www.mail-archive.com/qemu-devel@nongnu.org/msg667396.html", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "** DISPUTED ** An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a \"privileged guest user has many ways to cause similar DoS effect, without triggering this assert.\""}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-754"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-20175", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2019-12-31T04:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.2.0", "versionStartIncluding": "2.4.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-01-15T14:11Z"}