« Volver al listado

CVE-2017-6891

Estado: ModificadaAlta (8.8)—

Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.

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 (3)

Apache — BookkeeperDebian — Debian LinuxGNU — Libtasn1

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-6891",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "PSIRT-CNA@flexerasoftware.com",
      "affectedData": [
        {
          "vendor": "Flexera Software LLC",
          "product": "GnuTLS libtasn1",
          "versions": [
            {
              "status": "affected",
              "version": "4.10. Other versions may also be affected."
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-05-22T19:29:00.250",
  "references": [
    {
      "url": "http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.html",
      "tags": [
        "Broken Link"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3861",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98641",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1038619",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/advisories/76125/",
      "tags": [
        "Permissions Required"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201710-11",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.html",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3861",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/98641",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1038619",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/advisories/76125/",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201710-11",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Two errors in the \"asn1_find_node()\" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility."
    },
    {
      "lang": "es",
      "value": "Se pueden explotar dos errores en la función \\\"asn1_find_node()\\\" (lib/parser_aux.c) en GnuTLS libtasn1 versión 4.10 para provocar un desbordamiento de búfer basado en pila engañando a un usuario para que procese un archivo de asignaciones especialmente manipulado mediante la utilidad de ejemplo asn1Coding."
    }
  ],
  "lastModified": "2026-06-17T01:23:17.003",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnu:libtasn1:4.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "17277D17-DF6A-4594-B9FA-8D91EFF3ADBC"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:bookkeeper:4.12.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FB293558-0DB0-4EEB-A91C-7B00A9FA634E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "PSIRT-CNA@flexerasoftware.com"
}