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CVE-2018-6759

Status: ModifiedMedium (5.5)—

The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file.

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)

GNU — Binutils

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-6759",
  "cveTags": [],
  "metrics": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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  "published": "2018-02-06T21:29:00.520",
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  "vulnStatus": "Modified",
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          "value": "CWE-20"
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      "lang": "en",
      "value": "The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file."
    },
    {
      "lang": "es",
      "value": "La función bfd_get_debug_link_info_1 en opncls.c en la biblioteca Binary File Descriptor (BFD), también conocida como libbfd, tal y como se distribuye en GNU Binutils 2.29.2,30, tiene una operación strnlen sin verificar. Los atacantes remotos pueden aprovechar esta vulnerabilidad para provocar una denegación de servicio (fallo de segmentación) mediante un archivo ELF manipulado."
    }
  ],
  "lastModified": "2026-06-17T02:02:14.257",
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