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CVE-2021-28651

Estado: ModificadaAlta (7.5)—

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.

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 (4)

Debian — Debian LinuxFedoraproject — FedoraNetapp — Cloud ManagerSquid-cache — Squid

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28651",
  "cveTags": [],
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          "authentication": "NONE",
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          "confidentialityImpact": "NONE"
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      "value": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption."
    },
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      "lang": "es",
      "value": "Se detectó un problema en Squid versiones anteriores a 4.15 y versiones 5.x anteriores a 5.0.6. Debido a un bug de administración del búfer, permite una denegación de servicio. Cuando se resuelve una petición con el esquema urn:, el analizador filtra una pequeña cantidad de memoria. Sin embargo, se presenta una metodología de ataque no especificada que puede desencadenar fácilmente una gran cantidad de consumo de memoria"
    }
  ],
  "lastModified": "2026-06-17T03:46:42.483",
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