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CVE-2009-1935

Estado: ModificadaMedia (4.9)—

Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.c) in the direct write optimization feature in the pipe implementation in FreeBSD 7.1 through 7.2 and 6.3 through 6.4 allows local users to bypass virtual-to-physical address lookups and read sensitive information in memory pages via unspecified vectors.

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)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-1935",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secteam@freebsd.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-06-18T18:30:00.407",
  "references": [
    {
      "url": "http://osvdb.org/55044",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://secunia.com/advisories/35398",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://security.freebsd.org/patches/SA-09:09/pipe.patch",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/35279",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1022365",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/51109",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://osvdb.org/55044",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/35398",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.freebsd.org/patches/SA-09:09/pipe.patch",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/35279",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1022365",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/51109",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.c) in the direct write optimization feature in the pipe implementation in FreeBSD 7.1 through 7.2 and 6.3 through 6.4 allows local users to bypass virtual-to-physical address lookups and read sensitive information in memory pages via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la función pipe_build_write_buffer (sys/kern/sys_pipe.c) en la característica de escritura directa en la implementación del filtro en FreeBSD v7.1 hasta v7.2 y v6.3 hasta v6.4, permite a usuarios locales saltarse las búsquedas de direcciones virtual-to-physical, y leer información sensible en paginas de memoria a través de vectores no específicos."
    }
  ],
  "lastModified": "2026-06-16T23:08:23.453",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F702C46F-CA02-4FA2-B7D6-C61C2C095679"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.3:release_p10:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A1D9D46-75E4-4742-9CF3-2B063B6B7504"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.3_releng:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "72C2BE9D-91E1-48E9-9326-39CF583A57E0"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4F7F02A-C845-40BF-8490-510A070000F3"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.4:release_p4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8E08DCB9-9064-4DB7-B43A-7B415882EB50"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.4:stable:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "06FB0EEA-254E-4A1F-99E7-058FCD518E22"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "803EFA9F-B7CB-4511-B1C1-381170CA9A23"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "14D72C9B-EEB0-4605-BEA2-F77092129245"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "52DBF406-9C77-4DDA-AB7D-40FAE40023D0"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:release-p1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "20A31C9A-A928-4C9B-BB49-0E53227746DC"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:release-p2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "99FB7443-F942-402A-9104-64677EAF014E"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:release-p5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C2A31704-E99F-4DBE-ABA4-EC3E566DE6CB"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.1:stable:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E9A75104-5A3E-485E-B4EC-0873C942731C"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F948527C-A01E-4315-80B6-47FACE18A34F"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.2:pre-release:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8B573401-DC6F-4AFE-92F5-D96F785D2107"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org"
}