CVE-2019-12067

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null."}, {"lang": "es", "value": "La funci\u00f3n ahci_commit_buf en el archivo ide/ahci.c en QEMU permite a atacantes causar una denegaci\u00f3n de servicio (derivaci\u00f3n de NULL) cuando el encabezado del comando \"ad-)cur_cmd\" es null"}], "id": "CVE-2019-12067", "lastModified": "2026-06-17T02:14:01.443", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 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{"bugzilla": {"description": "QEMU: NULL dereference in ahci_commit_buf() leading to DoS", "id": "1759820", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1759820"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.2", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-476", "details": ["The ahci_commit_buf function in ide/ahci.c in QEMU allows attackers to cause a denial of service (NULL dereference) when the command header 'ad->cur_cmd' is null.", "A NULL pointer dereference flaw was found in the QEMU emulator's IDE AHCI emulator. Exploitation of the flaw could occur while committing DMA buffer in ahci_commit_buf() if the command header 'ad->cur_cmd' was null. A privileged guest user could use this flaw to crash the QEMU process instance resulting in DoS. Reduced performance of the system is the highest threat to the system."], "name": "CVE-2019-12067", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kvm", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Fix deferred", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:openstack:14", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 14 (Rocky)"}], "public_date": "2019-10-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-12067\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-12067"], "statement": "The qemu-kvm package versions as shipped with Red Hat Enterprise Linux 6 and 7 are not affected by this issue. \nThe qemu-kvm package version as shipped with Red Hat Enterprise Linux 8 is affected by this issue. Future qemu-kvm updates for Red Hat Enterprise Linux 8 may address this issue.", "threat_severity": "Low"}

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