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FKIE_CVE-2016-8616

Vulnerability from fkie_nvd - Published: 2018-08-01 06:29 - Updated: 2026-06-17 00:54
Severity
3.7 (Low) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.
References
secalert@redhat.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch
secalert@redhat.comhttp://www.securityfocus.com/bid/94094Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.securitytracker.com/id/1037192Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3558Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616Issue Tracking, Patch, Vendor Advisory
secalert@redhat.comhttps://curl.haxx.se/CVE-2016-8616.patchPatch, Vendor Advisory
secalert@redhat.comhttps://curl.haxx.se/docs/adv_20161102B.htmlPatch, Vendor Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/201701-47Third Party Advisory
secalert@redhat.comhttps://www.tenable.com/security/tns-2016-21Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94094Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037192Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3558Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://curl.haxx.se/CVE-2016-8616.patchPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://curl.haxx.se/docs/adv_20161102B.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201701-47Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2016-21Third Party Advisory
Impacted products
Vendor Product Version
haxx curl *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "curl",
          "vendor": "The Curl Project",
          "versions": [
            {
              "status": "affected",
              "version": "7.51.0"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "003F3872-1AD1-4980-9A63-39B7D6E09D66",
              "versionEndExcluding": "7.51.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en versiones anteriores a la 7.51.0 de curl. Al reutilizar una conexi\u00f3n, curl realizaba comparaciones no sensibles a may\u00fasculas del nombre de usuario y la contrase\u00f1a en las conexiones existentes. Esto significa que, si existe una conexi\u00f3n no utilizada con credenciales adecuadas para un protocolo que tiene credenciales restringidas a la conexi\u00f3n, un atacante podr\u00eda provocar que se reutilice esa conexi\u00f3n si este conoce la versi\u00f3n que no distingue entre may\u00fasculas/min\u00fasculas de la contrase\u00f1a correcta."
    }
  ],
  "id": "CVE-2016-8616",
  "lastModified": "2026-06-17T00:54:36.700",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-08-01T06:29:00.287",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch"
      ],
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94094"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id/1037192"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:2486"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:3558"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.haxx.se/CVE-2016-8616.patch"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.haxx.se/docs/adv_20161102B.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201701-47"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/tns-2016-21"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/94094"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id/1037192"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:2486"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:3558"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.haxx.se/CVE-2016-8616.patch"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.haxx.se/docs/adv_20161102B.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201701-47"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/tns-2016-21"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-592"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-255"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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