{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-27T20:51:25.909","vulnerabilities":[{"cve":{"id":"CVE-2018-16840","sourceIdentifier":"secalert@redhat.com","published":"2018-10-31T18:29:00.307","lastModified":"2025-04-17T13:05:04.557","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct."},{"lang":"es","value":"Se ha detectado un error de uso de memoria dinámica (heap) previamente liberada en Curl, desde la versión 7.59.0 hasta la 7.61.1, en el código relacionado con el cierre de un controlador \"easy\". Al cerrar y limpiar un controlador \"easy\" en la función \"Curl_close()\", el código de la biblioteca libera, en primer lugar, un struct (sin pasar el puntero a null) y, después, podría escribir erróneamente en un campo struct dentro del struct ya liberado."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/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}],"cvssMetricV30":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*","versionStartIncluding":"7.59.0","versionEndExcluding":"7.62.0","matchCriteriaId":"BA39901D-8EE5-4B6F-A0D3-43522D998003"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"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"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*","matchCriteriaId":"07C312A0-CD2C-4B9C-B064-6409B25C278F"}]}]}],"references":[{"url":"http://www.securitytracker.com/id/1042013","source":"secalert@redhat.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840","source":"secalert@redhat.com","tags":["Issue Tracking","Third Party Advisory"]},{"url":"https://curl.haxx.se/docs/CVE-2018-16840.html","source":"secalert@redhat.com","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f","source":"secalert@redhat.com","tags":["Patch","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/201903-03","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3805-1/","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1042013","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"]},{"url":"https://curl.haxx.se/docs/CVE-2018-16840.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","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/3805-1/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}