CVE-2018-1000005

{"id": "CVE-2018-1000005", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2018-01-24T22:29:00.307", "references": [{"url": "http://www.securitytracker.com/id/1040273", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2019:1543", "source": "cve@mitre.org"}, {"url": "https://curl.haxx.se/docs/adv_2018-824a.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/curl/curl/pull/2231", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3554-1/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2018/dsa-4098", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers. It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn't updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something."}, {"lang": "es", "value": "libcurl 7.49.0 hasta e incluyendo la versi\u00f3n 7.57.0 contiene una lectura fuera de l\u00edmites en los trailers de manipulaci\u00f3n de c\u00f3digo HTTP/2. Se ha notificado (https://github.com/curl/curl/pull/2231) que la lectura de un trailer HTTP/2 podr\u00eda da\u00f1ar futuros trailers debido a que el tama\u00f1o almacenado era un byte menor de lo requerido. El problema es que el c\u00f3digo que crea cabeceras como HTTP/1 de los datos del trailer HTTP/2 anexaron una cadena como \":\" en el b\u00fafer objetivo, a pesar de que se hab\u00eda cambiado recientemente a \": \" (se a\u00f1adi\u00f3 un espacio despu\u00e9s de los dos puntos), pero la siguiente matem\u00e1tica no se actualiz\u00f3 debidamente. Al acceder a ellos, los datos se leen fuera de l\u00edmites y provocan o un cierre inesperado o que los datos (demasiado grandes) se pasen a escritura del cliente. Esto podr\u00eda conducir a una situaci\u00f3n de denegaci\u00f3n de servicio (DoS) o a una divulgaci\u00f3n de informaci\u00f3n si alguien tiene un servicio que devuelva ecos o que emplee los trailers para algo."}], "lastModified": "2019-06-18T22:15:11.153", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "11B88D2C-921D-4324-8BFD-66069D808808", "versionEndIncluding": "7.57.0", "versionStartIncluding": "7.49.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}