{"id":"CVE-2019-20175","state":"PUBLISHED","title":"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_C","description":"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.","publishedAt":"2019-12-31T03:27:40.000Z","updatedAt":"2024-08-05T02:39:09.821Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html","https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html","https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html","https://www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html","https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:45:50.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/20xxx/CVE-2019-20175.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-20175","state":"PUBLISHED","datePublished":"2019-12-31T03:27:40.000Z","dateUpdated":"2024-08-05T02:39:09.821Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2019-12-31T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html","tags":["x_refsource_MISC"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html","tags":["x_refsource_MISC"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html","tags":["x_refsource_MISC"]},{"url":"https://www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html","tags":["x_refsource_MISC"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2019-12-31T03:27:40.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"tags":["disputed"],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2019-20175","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"** DISPUTED ** An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. 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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":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html","refsource":"MISC","url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html"},{"name":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html","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/msg02165.html","refsource":"MISC","url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html"},{"name":"https://www.mail-archive.com/qemu-devel@nongnu.org/msg667396.html","refsource":"MISC","url":"https://www.mail-archive.com/qemu-devel@nongnu.org/msg667396.html"},{"name":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html","refsource":"MISC","url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html"}]}}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-26T19:35:51.638983Z","id":"CVE-2019-20175","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-26T19:36:00.122Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T02:39:09.821Z"}}]}}}