CVE-2021-30047

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vsftpd_project:vsftpd:3.0.3:*:*:*:*:*:*:*", "matchCriteriaId": "52E96797-4F16-4478-B9CA-847E469AD982", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "VSFTPD 3.0.3 allows attackers to cause a denial of service due to limited number of connections allowed."}, {"lang": "es", "value": "VSFTPD 3.0.3 permite a los atacantes provocar una denegaci\u00f3n de servicio debido al n\u00famero limitado de conexiones permitidas."}], "id": "CVE-2021-30047", "lastModified": "2026-06-17T03:49:38.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-30047", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-03T17:59:44.381641Z", "version": "2.0.3"}}]}, "published": "2023-08-22T19:16:20.290", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/49719"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/49719"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "vsftpd: denial of service due to limited number of connections allowed", "id": "2235683", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2235683"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-400", "details": ["VSFTPD 3.0.3 allows attackers to cause a denial of service due to limited number of connections allowed.", "VSFTPD is vulnerable to a denial of service, caused by only a limited number of connections allowed, a remote attacker could exploit this vulnerability to cause a denial of service condition."], "name": "CVE-2021-30047", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "vsftpd", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "vsftpd", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "vsftpd", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "vsftpd", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-08-22T13:18:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-30047\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-30047"], "threat_severity": "Moderate"}

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