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CVE-2016-6309

Estado: ModificadaCrítica (9.8)—

statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Openssl — Openssl

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-6309",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-09-26T19:59:06.393",
  "references": [
    {
      "url": "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21995039",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/93177",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1036885",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa132",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=acacbfa7565c78d2273c0b2a2e5e803f44afefeb",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.openssl.org/news/secadv/20160926.txt",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-16",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-20",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21995039",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/93177",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1036885",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa132",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=acacbfa7565c78d2273c0b2a2e5e803f44afefeb",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.openssl.org/news/secadv/20160926.txt",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-16",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-20",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session."
    },
    {
      "lang": "es",
      "value": "statem/statem.c en OpenSSL 1.1.0a no considera el movimiento de bloque de memoria después de una llamada realloc, lo que permite a atacantes remotos provocar una denegación de servicio (uso después de liberación de memoria) o posiblemente ejecutar código arbitrario a través de una sesión TLS manipulada."
    }
  ],
  "lastModified": "2026-06-17T00:50:48.293",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C9D7A18A-116B-4F68-BEA3-A4E9DDDA55C6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}