CVE-2019-19945

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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:o:openwrt:openwrt:*:*:*:*:*:*:*:*", "matchCriteriaId": "50F23DBC-38D0-4966-AA8E-A2A67508E53B", "versionEndIncluding": "18.06.5", "versionStartIncluding": "18.06.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*", "matchCriteriaId": "4FA469E2-9E63-4C9A-8EBA-10C8C870063A", "vulnerable": true}, {"criteria": "cpe:2.3:o:openwrt:openwrt:19.07.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "390F10D5-B9F6-4FD9-BD65-8189BC3B4B6F", "vulnerable": true}, {"criteria": "cpe:2.3:o:openwrt:openwrt:19.07.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "C6E0E897-9CA2-4FEB-BFFB-A0BECDB01741", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "uhttpd in OpenWrt through 18.06.5 and 19.x through 19.07.0-rc2 has an integer signedness error. This leads to out-of-bounds access to a heap buffer and a subsequent crash. It can be triggered with an HTTP POST request to a CGI script, specifying both \"Transfer-Encoding: chunked\" and a large negative Content-Length value."}, {"lang": "es", "value": "uhttpd en OpenWrt versiones hasta 18.06.5 y versiones 19.x hasta 19.07.0-rc2, presenta un error de la propiedad signedness de enteros. Esto conlleva a un acceso fuera de l\u00edmites en un b\u00fafer de la pila y un bloqueo posterior. Se puede activar con una petici\u00f3n HTTP POST en un script CGI, especificando tanto \"Transfer-Encoding: chunked\" como un valor negativo grande de Content-Length."}], "id": "CVE-2019-19945", "lastModified": "2026-06-17T02:27:29.470", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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"}]}, "published": "2020-03-16T18:15:12.213", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/openwrt/openwrt/commits/master"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://openwrt.org/advisory/2020-01-13-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/openwrt/openwrt/commits/master"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://openwrt.org/advisory/2020-01-13-1"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-681"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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