CVE-2019-20433

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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:gnu:aspell:*:*:*:*:*:*:*:*", "matchCriteriaId": "641C572A-E8C6-44DB-ADEA-BD5B59E3F06F", "versionEndExcluding": "0.60.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable."}, {"lang": "es", "value": "La biblioteca libaspell.a en GNU Aspell versiones anteriores a 0.60.8, presenta una lectura excesiva del b\u00fafer para una cadena que termina con un solo byte '\\0', si la codificaci\u00f3n es establecida en ucs-2 o ucs-4 fuera de la aplicaci\u00f3n, como es demostrado por la variable de entorno ASPELL_CONF."}], "id": "CVE-2019-20433", "lastModified": "2026-06-17T02:30:25.780", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-01-27T15:15:12.150", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://aspell.net/buffer-overread-ucs.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://aspell.net/buffer-overread-ucs.txt"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "aspell: UCS-2 and UCS-4 null-terminated string handling OOB read", "id": "1764299", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1764299"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-170->CWE-135->CWE-125", "details": ["libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable."], "name": "CVE-2019-20433", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "aspell", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "aspell", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "aspell", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2019-08-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-20433\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-20433"], "threat_severity": "Moderate"}

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