fkie_cve-2020-5235
Vulnerability from fkie_nvd
Published
2020-02-04 03:15
Modified
2024-11-21 05:33
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
There is a potentially exploitable out of memory condition In Nanopb before 0.4.1, 0.3.9.5, and 0.2.9.4. When nanopb is compiled with PB_ENABLE_MALLOC, the message to be decoded contains a repeated string, bytes or message field and realloc() runs out of memory when expanding the array nanopb can end up calling `free()` on a pointer value that comes from uninitialized memory. Depending on platform this can result in a crash or further memory corruption, which may be exploitable in some cases. This problem is fixed in nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4.
References
security-advisories@github.comhttps://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287pPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287pPatch, Third Party Advisory
Impacted products
Vendor Product Version
nanopb_project nanopb *
nanopb_project nanopb *
nanopb_project nanopb *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4C0C3188-DACC-4BFC-88EE-17A3EA6DECB4",
              "versionEndExcluding": "0.2.9.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7AC327EC-CA02-408D-B00C-1A23ACB339F4",
              "versionEndExcluding": "0.3.9.5",
              "versionStartIncluding": "0.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7F47A79C-0D54-439F-ADE6-BB093268FAA3",
              "versionEndExcluding": "0.4.1",
              "versionStartIncluding": "0.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a potentially exploitable out of memory condition In Nanopb before 0.4.1, 0.3.9.5, and 0.2.9.4. When nanopb is compiled with PB_ENABLE_MALLOC, the message to be decoded contains a repeated string, bytes or message field and realloc() runs out of memory when expanding the array nanopb can end up calling `free()` on a pointer value that comes from uninitialized memory. Depending on platform this can result in a crash or further memory corruption, which may be exploitable in some cases. This problem is fixed in nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4."
    },
    {
      "lang": "es",
      "value": "Se presenta una condici\u00f3n de falta de memoria explotable potencialmente en Nanopb versiones anteriores a 0.4.1, 0.3.9.5 y 0.2.9.4. Cuando se compila nanopb con PB_ENABLE_MALLOC, el mensaje que va a ser decodificado contiene una cadena repetida, campo bytes o message y la funci\u00f3n realloc() se queda sin memoria cuando se expande la matriz, nanopb puede terminar llamando a \"free()\" en un valor de puntero que proviene de una memoria no inicializada. Dependiendo de la plataforma, esto puede resultar en un bloqueo o una mayor corrupci\u00f3n de la memoria, que puede ser explotable en algunos casos. Este problema es corregido en las versiones nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4."
    }
  ],
  "id": "CVE-2020-5235",
  "lastModified": "2024-11-21T05:33:44.057",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-02-04T03:15:10.657",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287p"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287p"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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