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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-6543

In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-6543
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:26 UTC · Revision 1

Source evidence

CVE-2018-6543

core-osv · Original source

Published 2 Feb 2018, 09:29 UTC

In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

osv:CVE-2018-6543
Complete source record
{
  "id": "e7ce4defee7e23da32dd15a3ed4c89c68b2138d88765079ae5acb33b6189cd56",
  "url": "https://osv.dev/vulnerability/CVE-2018-6543",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-6543",
    "summary": "In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.",
    "evidence": "osv:CVE-2018-6543",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-6543",
      "aliases": [
        "CVE-2018-6543"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-2018-6543.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:39.449691997Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/201811-17",
        "https://sourceware.org/bugzilla/show_bug.cgi?id=22769"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-6543",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434669,
  "published_at": "2018-02-02T09:29:00.647+00:00"
}