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CVE-2018-15518

Estado: ModificadaAlta (8.8)—

QXmlStream en Qt 5.x en versiones anteriores a la 5.11.3 tiene una doble liberación (double free) o una corrupción durante el análisis de un documento XML ilegal especialmente manipulado.

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 (3)

Debian — Debian LinuxOpensuse — LeapQT — QT

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-15518",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-12-26T21:29:00.823",
  "references": [
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    },
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    },
    {
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    {
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    {
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    {
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      ],
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    },
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      "tags": [
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      "source": "cve@mitre.org"
    },
    {
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    },
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    },
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/01/msg00004.html",
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00014.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00023.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/4003-1/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4374",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-12/msg00066.html",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00057.html",
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00071.html",
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    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00073.html",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://access.redhat.com/errata/RHSA-2019:3390",
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    },
    {
      "url": "https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/",
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        "Third Party Advisory"
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        "Third Party Advisory"
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      "url": "https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/",
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        "Patch",
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    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00014.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document."
    },
    {
      "lang": "es",
      "value": "QXmlStream en Qt 5.x en versiones anteriores a la 5.11.3 tiene una doble liberación (double free) o una corrupción durante el análisis de un documento XML ilegal especialmente manipulado."
    }
  ],
  "lastModified": "2026-06-17T01:42:41.580",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F92505F4-3A07-4D80-B85F-F4D3B351A92F",
              "versionEndExcluding": "5.11.3",
              "versionStartIncluding": "5.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
            },
            {
              "criteria": "cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5F65DAB0-3DAD-49FF-BC73-3581CC3D5BF3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}