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CVE-2024-32974

Status: ModifiedHigh (7.5)—

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in `EnvoyQuicServerStream::OnInitialHeadersComplete()` with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after `StopReading()` being called on the stream. As after `StopReading()`, the HCM's `ActiveStream` might have already be destroyed and any up calls from QUICHE could potentially cause use after free.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Envoyproxy — Envoy

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2024-32974",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-32974",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          ],
          "version": "2.0.3",
          "timestamp": "2024-07-19T18:30:05.375686Z"
        }
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    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "published": "2024-06-04T21:15:33.773",
  "references": [
    {
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-mgxp-7hhp-8299",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-mgxp-7hhp-8299",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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          "value": "CWE-416"
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      "value": "Envoy is a cloud-native, open source edge and service proxy. A crash was observed in `EnvoyQuicServerStream::OnInitialHeadersComplete()` with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after `StopReading()` being called on the stream. As after `StopReading()`, the HCM's `ActiveStream` might have already be destroyed and any up calls from QUICHE could potentially cause use after free. \n"
    },
    {
      "lang": "es",
      "value": "Envoy es un proxy de servicio y borde de código abierto, nativo de la nube. Se observó un bloqueo en `EnvoyQuicServerStream::OnInitialHeadersComplete()` con la siguiente pila de llamadas. Es un use-after-free causado porque QUICHE continúa enviando encabezados de solicitud después de que se llama a `StopReading()` en la secuencia. Al igual que después de `StopReading()`, es posible que el `ActiveStream` del HCM ya se haya destruido y cualquier llamada desde QUICHE podría provocar su use after free."
    }
  ],
  "lastModified": "2026-06-17T07:30:48.100",
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          "negate": false,
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              "versionEndExcluding": "1.27.6"
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