{
  "id": "CVE-2020-27790",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2022-08-18T19:15:14.270",
  "lastModified": "2025-04-11T12:27:55.013",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema de excepci\u00f3n de punto flotante en UPX en la funci\u00f3n PackLinuxElf64::invert_pt_dynamic() del archivo p_lx_elf.cpp. Un atacante con un archivo de entrada dise\u00f1ado podr\u00eda desencadenar este problema que podr\u00eda causar un fallo que conlleva una denegaci\u00f3n de servicio. El mayor impacto es la disponibilidad."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "secalert@redhat.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26",
      "source": "secalert@redhat.com",
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        "Patch",
        "Third Party Advisory"
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    },
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      "url": "https://github.com/upx/upx/issues/331",
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
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    {
      "url": "https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26",
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}