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CVE-2018-20182

Estado: ModificadaCrítica (9.8)—

rdesktop, en versiones hasta e incluyendo la v1.8.3, contiene un desbordamiento de búfer en las variables globales en la función seamless_process_line() y resulta en la corrupción de memoria y, posiblemente, incluso la ejecución remota de código.

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 (2)

Debian — Debian LinuxRdesktop — Rdesktop

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-20182",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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          "scope": "UNCHANGED",
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          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-03-15T18:29:00.703",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html",
      "source": "cve@mitre.org"
    },
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      "url": "http://www.securityfocus.com/bid/106938",
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        "VDB Entry"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1",
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    {
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    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1",
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    },
    {
      "url": "https://security.gentoo.org/glsa/201903-06",
      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4394",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "rdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global variables in the function seamless_process_line() that results in memory corruption and probably even a remote code execution."
    },
    {
      "lang": "es",
      "value": "rdesktop, en versiones hasta e incluyendo la v1.8.3, contiene un desbordamiento de búfer en las variables globales en la función seamless_process_line() y resulta en la corrupción de memoria y, posiblemente, incluso la ejecución remota de código."
    }
  ],
  "lastModified": "2026-06-17T01:52:25.090",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
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              "versionEndIncluding": "1.8.3"
            }
          ],
          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}