CVE-2016-3739

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7.49.0, cuando usan SSLv3 o hacen una conexi\u00f3n TSL a una URL que usa una direcci\u00f3n IP num\u00e9rica, permiten a atacantes remotos enga\u00f1ar a los servidores a trav\u00e9s de un certificado arbitrario v\u00e1lido."}], "id": "CVE-2016-3739", "lastModified": "2026-06-17T00:46:17.247", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.6, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-05-20T14:59:05.450", "references": [{"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"}, {"source": "secalert@redhat.com", "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/90726"}, {"source": "secalert@redhat.com", "url": "http://www.securitytracker.com/id/1035907"}, {"source": "secalert@redhat.com", "url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.495349"}, {"source": "secalert@redhat.com", "tags": ["Vendor 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"https://security.gentoo.org/glsa/201701-47"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Daniel Stenberg (curl upstream) for reporting this issue. Upstream acknowledges Moti Avrahami as the original reporter.", "bugzilla": {"description": "curl: TLS certificate name check bypass with mbedTLS and PolarSSL", "id": "1335430", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1335430"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N", "status": "draft"}, "cwe": "CWE-345", "details": ["The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection to a URL that uses a numerical IP address, allow remote attackers to spoof servers via an arbitrary valid certificate."], "name": "CVE-2016-3739", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_linux:7::hypervisor", "fix_state": "Not affected", "package_name": "mingw-virt-viewer", "product_name": "Red Hat Enterprise Virtualization 3"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat JBoss Enterprise Web Server 3"}], "public_date": "2016-05-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-3739\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-3739\nhttps://curl.haxx.se/docs/adv_20160518.html"], "threat_severity": "Moderate"}

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