CVE-2024-7246 (GCVE-0-2024-7246)

Vulnerability from cvelistv5 – Published: 2024-08-06 10:14 – Updated: 2024-08-06 13:17
VLAI
Title
HPACK table poisoning in gRPC C++, Python & Ruby
Summary
It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table. Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-06 13:17 UTC
CWE
  • CWE-440 - Expected Behavior Violation
Assigner
Google CNA under the Google root
CNA scorecard B 78/100 over 38 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Google gRPC Affected: 1.53.0 (custom)
Affected: 1.53.1 (custom)
Affected: 1.53.2 (custom)
Affected: 1.54.0 (custom)
Affected: 1.54.1 (custom)
Affected: 1.54.3 (custom)
Affected: 1.55.0 (custom)
Affected: 1.55.1 (custom)
Affected: 1.55.3 (custom)
Affected: 1.55.4 (custom)
Affected: 1.56.0 (custom)
Affected: 1.56.1 (custom)
Affected: 1.56.2 (custom)
Affected: 1.56.3 (custom)
Affected: 1.56.4 (custom)
Affected: 1.57.0 (custom)
Affected: 1.57.1 (custom)
Affected: 1.58.0 (custom)
Affected: 1.58.1 (custom)
Affected: 1.58.2 (custom)
Affected: 1.59.0 (custom)
Affected: 1.59.1 (custom)
Affected: 1.59.2 (custom)
Affected: 1.59.3 (custom)
Affected: 1.59.4 (custom)
Affected: 1.60.0 (custom)
Affected: 1.60.1 (custom)
Affected: 1.61.0 (custom)
Affected: 1.61.1 (custom)
Affected: 1.62.0 (custom)
Affected: 1.61.2 (custom)
Affected: 1.62.1 (custom)
Affected: 1.62.2 (custom)
Affected: 1.63.0 (custom)
Affected: 1.63.1 (custom)
Affected: 1.64.0 (custom)
Affected: 1.64.1 (custom)
Affected: 1.64.2 (custom)
Affected: 1.65.0 (custom)
Affected: 1.65.1 (custom)
Affected: 1.65.2 (custom)
Affected: 1.65.3 (custom)
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            "value": "Es posible que un cliente gRPC que se comunica con un proxy HTTP/2 envenene la tabla HPACK entre el proxy y el backend de modo que otros clientes vean solicitudes fallidas. Tambi\u00e9n es posible utilizar esta vulnerabilidad para filtrar claves de encabezado HTTP de otros clientes, pero no valores. Esto ocurre porque el estado de error de un encabezado mal codificado no se borra entre lecturas de encabezado, lo que da como resultado que los encabezados agregados posteriores (indexados incrementalmente) en la primera solicitud se envenenen hasta que se eliminen de la tabla HPACK. Actualice a una versi\u00f3n fija de gRPC lo antes posible. Este error se solucion\u00f3 en 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4."
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        "id": "CVE-2024-7246",
        "lastModified": "2026-06-17T08:19:41.730",
        "metrics": {
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                "attackComplexity": "LOW",
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                "baseSeverity": "MEDIUM",
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                "exploitMaturity": "NOT_DEFINED",
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                "modifiedAttackVector": "NOT_DEFINED",
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      "product_status:fixed": "46",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "4647",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "grpc: client communicating with a HTTP/2 proxy can poison the HPACK table between the proxy and the backend",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-7246.json",
      "version": "3"
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    "vulnrichment": {
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}



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Sightings

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