CVE-2021-4158

{"id": "CVE-2021-4158", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.5}]}, "published": "2022-08-24T16:15:09.660", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2021-4158", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2035002", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://gitlab.com/qemu-project/qemu/-/issues/770", "tags": ["Exploit", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-476"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition."}, {"lang": "es", "value": "Se ha encontrado un problema de desreferencia de puntero NULL en el c\u00f3digo ACPI de QEMU. Un usuario malicioso y con privilegios dentro del hu\u00e9sped pod\u00eda usar este fallo para bloquear el proceso de QEMU en el host, resultando en una situaci\u00f3n de denegaci\u00f3n de servicio."}], "lastModified": "2024-01-25T21:29:39.943", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9256E28E-727B-4C6F-96E3-F2D4EA5E4BB1", "versionEndExcluding": "7.0.0", "versionStartIncluding": "6.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}