« Volver al listado

CVE-2020-23915

Estado: ModificadaMedia (5.5)—

An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.

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)

Cpp-peglib Project — Cpp-peglib

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-23915",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "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": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-21T18:15:08.270",
  "references": [
    {
      "url": "https://cwe.mitre.org/data/definitions/126.html",
      "tags": [
        "Technical Description"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/yhirose/cpp-peglib/commit/b3b29ce8f3acf3a32733d930105a17d7b0ba347e",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/yhirose/cpp-peglib/issues/122",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://cwe.mitre.org/data/definitions/126.html",
      "tags": [
        "Technical Description"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/yhirose/cpp-peglib/commit/b3b29ce8f3acf3a32733d930105a17d7b0ba347e",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/yhirose/cpp-peglib/issues/122",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en cpp-peglib versiones hasta v0.1.12. La función peg::resolve_escape_sequence() en el archivo peglib.h presenta una lectura excesiva del búfer en la región heap de la memoria"
    }
  ],
  "lastModified": "2026-06-17T03:05:05.380",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cpp-peglib_project:cpp-peglib:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7E9A6A5B-E857-44B5-B9C0-8DA8E21A075E",
              "versionEndIncluding": "0.1.12"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}