« Volver al listado

CVE-2015-3217

Estado: ModificadaAlta (7.5)—

PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.

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)

IBM — PowerkvmPcre — PcrePcre — Pcre2

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2015-3217",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-12-13T16:59:02.220",
  "references": [
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1025.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://vcs.pcre.org/pcre?view=revision&revision=1566",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/06/03/7",
      "tags": [
        "Mailing List"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/75018",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1132",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugs.exim.org/show_bug.cgi?id=1638",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1228283",
      "tags": [
        "Issue Tracking"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1025.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://vcs.pcre.org/pcre?view=revision&revision=1566",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/06/03/7",
      "tags": [
        "Mailing List"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/75018",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1132",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.exim.org/show_bug.cgi?id=1638",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1228283",
      "tags": [
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\\\.|([^\\\\\\\\W_])?)+)+$/."
    },
    {
      "lang": "es",
      "value": "PCRE 7.8 y 8.32 hasta la versión 8.37 y PCRE2 10.10 no maneja adecuadamente las partidas de grupo vacías, lo que podrían permitir a atacantes remotos provocar una denegación de servicio (desbordamientos de búfer basado en pila) a través de una expresión regular manipulada, según lo demostrado por /^(?:(?(1)\\\\.|([^\\\\\\\\W_])?)+)+$/."
    }
  ],
  "lastModified": "2026-06-17T00:25:33.513",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pcre:pcre2:10.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E64C5505-F782-443F-944C-AC17B8468406"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pcre:pcre:7.8:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "880F4520-1DD8-4423-B0E0-B3783F971167"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.32:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4CE5EE9A-0FA0-4851-8AF3-D884B88B2E52"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.33:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5A61CB8C-6504-4602-91A5-C1595C12F6AB"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.34:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F6876A94-2609-41CE-975E-F1ADAE1BD782"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.35:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9DA3CC4F-1797-46D8-8C3D-0605E71C5EAE"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.36:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "909CD13B-E836-4EBF-9433-55B4EFFE2DC4"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.37:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF43E164-05C2-42A8-82CA-D1B643875C2B"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ibm:powerkvm:2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "161594FF-0DF8-43C8-B532-EBB20228023D"
            },
            {
              "criteria": "cpe:2.3:a:ibm:powerkvm:3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A0744845-0230-47E7-866A-0880832B31C8"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}