{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T08:28:46.188","vulnerabilities":[{"cve":{"id":"CVE-2018-14618","sourceIdentifier":"secalert@redhat.com","published":"2018-09-05T19:29:00.420","lastModified":"2024-11-21T03:49:26.003","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.)"},{"lang":"es","value":"curl en versiones anteriores a la 7.61.1 es vulnerable a un desbordamiento de búfer en el código de autenticación NTLM. La función interna Curl_ntlm_core_mk_nt_hash multiplica la longitud de la contraseña por dos (SUM) para adivinar qué tamaño debe tener la zona de almacenamiento temporal que se va a asignar desde la memoria dinámica (heap). El valor de longitud se emplea a continuación para iterar sobre la contraseña y generar una salida en el búfer de almacenamiento asignado. En sistemas con un size_t de 32 bits, la matemática para calcular SUM desencadena un desbordamiento de enteros cuando la contraseña excede los 2 GB (2^31 bytes). Este desbordamiento de enteros suele provocar que un búfer muy pequeño se asigne en lugar del planeado (uno muy grande), por lo que su uso termina con un desbordamiento de búfer basado en memoria dinámica (heap). (Este error es casi idéntico a CVE-2017-8816)."}],"metrics":{"cvssMetricV30":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.6,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C","baseScore":10.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-122"},{"lang":"en","value":"CWE-131"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-190"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*","versionEndExcluding":"7.61.1","matchCriteriaId":"52ABFC88-7FDA-4850-BAAB-EAEBAA132B1A"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*","matchCriteriaId":"8D305F7A-D159-4716-AB26-5E38BB5CD991"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","matchCriteriaId":"B5A6F2F3-4894-4392-8296-3B8DD2679084"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","matchCriteriaId":"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","matchCriteriaId":"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"DEECE5FC-CACF-4496-A3E7-164736409252"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*","matchCriteriaId":"2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*","matchCriteriaId":"041F9200-4C01-4187-AE34-240E8277B54D"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*","matchCriteriaId":"4EB48767-F095-444F-9E05-D9AC345AB803"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*","matchCriteriaId":"5F6FA12B-504C-4DBF-A32E-0548557AA2ED"}]}]}],"references":[{"url":"http://www.securitytracker.com/id/1041605","source":"secalert@redhat.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://access.redhat.com/errata/RHSA-2018:3558","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1880","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14618","source":"secalert@redhat.com","tags":["Issue Tracking"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf","source":"secalert@redhat.com"},{"url":"https://curl.haxx.se/docs/CVE-2018-14618.html","source":"secalert@redhat.com","tags":["Vendor Advisory"]},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0014","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/201903-03","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3765-1/","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3765-2/","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2018/dsa-4286","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1041605","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://access.redhat.com/errata/RHSA-2018:3558","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2019:1880","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14618","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://curl.haxx.se/docs/CVE-2018-14618.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0014","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/201903-03","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3765-1/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3765-2/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2018/dsa-4286","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}