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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-6759

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.

Products
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Affected versions
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Fixed versions
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CVEs
CVE-2018-6759
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 05:38 UTC · Revision 1

Source evidence

CVE-2018-6759

core-osv · Original source

Published 6 Feb 2018, 21:29 UTC

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.

osv:CVE-2018-6759
Complete source record
{
  "id": "0efcd0d72ecbd64311f402a4c0fe3d99e7efd67f92bb0ae838c641d22263d057",
  "url": "https://osv.dev/vulnerability/CVE-2018-6759",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-6759",
    "summary": "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.",
    "evidence": "osv:CVE-2018-6759",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-6759",
      "aliases": [
        "CVE-2018-6759"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://sourceware.org/git/binutils-gdb.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8db5daf9efe8a6174d3b10ac7bba8c178836e9ce"
                },
                {
                  "last_affected": "8db5daf9efe8a6174d3b10ac7bba8c178836e9ce"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:binutils:2.30:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.30"
                      },
                      {
                        "last_affected": "2.30"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.30",
            "binutils-2_30"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6759.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:31.627817586Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/201811-17",
        "https://sourceware.org/bugzilla/show_bug.cgi?id=22794"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-6759",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432848,
  "published_at": "2018-02-06T21:29:00.52+00:00"
}