CVE-2021-3507

{"id": "CVE-2021-3507", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 1.8}]}, "published": "2021-05-06T16:15:07.547", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1951118", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://security.netapp.com/advisory/ntap-20210528-0005/", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-119"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory."}, {"lang": "es", "value": "Se encontr\u00f3 un desbordamiento del b\u00fafer de pila en el emulador de disquete de QEMU versiones hasta 6.0.0 (incluy\u00e9ndola). Podr\u00eda ocurrir en la funci\u00f3n fdctrl_transfer_handler() en el archivo hw/block/fdc.c mientras son procesados transferencias de datos de lectura DMA desde la unidad de disquete al sistema invitado. Un usuario invitado privilegiado podr\u00eda usar este fallo para bloquear el proceso QEMU en el host, resultando en un escenario de DoS o una posible filtraci\u00f3n de informaci\u00f3n de la memoria del host"}], "lastModified": "2023-02-12T23:41:11.353", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B002BA5C-F99C-460E-A53C-F61A813DD689", "versionEndIncluding": "6.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "053C1B35-3869-41C2-9551-044182DE0A64"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*", "vulnerable": true, "matchCriteriaId": "3AA08768-75AF-4791-B229-AE938C780959"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}