{
  "id": "CVE-2022-2962",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2022-09-13T20:15:09.640",
  "lastModified": "2025-04-23T18:15:48.600",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un problema de reentrada DMA en la emulaci\u00f3n del dispositivo Tulip en QEMU. Cuando Tulip lee o escribe en el descriptor rx/tx o copia la trama rx/tx, no comprueba si la direcci\u00f3n de destino es su propia direcci\u00f3n MMIO. Esto puede causar a el dispositivo disparar los manejadores MMIO m\u00faltiples veces, posiblemente conllevando a un desbordamiento de la pila (stack, heap). Un hu\u00e9sped malicioso podr\u00eda usar este fallo para bloquear el proceso QEMU en el host, resultando en una condici\u00f3n de denegaci\u00f3n de servicio"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      },
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          "baseSeverity": "HIGH",
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          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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  "weaknesses": [
    {
      "source": "secalert@redhat.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
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          "value": "CWE-662"
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      ]
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "4.2.0",
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  "references": [
    {
      "url": "https://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a4ca109182",
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}