Security advisory

{
  "id": "fec8b95e58f5b2c53c5a36b898410af8c976a1eb5c67c93c79c6ff95e7944e39",
  "url": "https://osv.dev/vulnerability/CVE-2018-11383",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-11383",
    "summary": "The r_strbuf_fini() function in radare2 2.5.0 allows remote attackers to cause a denial of service (invalid free and application crash) via a crafted ELF file because of an uninitialized variable in the CPSE handler in libr/anal/p/anal_avr.c.",
    "evidence": "osv:CVE-2018-11383",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-11383",
      "aliases": [
        "CVE-2018-11383"
      ],
      "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://github.com/radareorg/radare2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c2b7d11ca74cd98eba8912d94ec0973cf2965697"
                },
                {
                  "last_affected": "c2b7d11ca74cd98eba8912d94ec0973cf2965697"
                },
                {
                  "fixed": "9d348bcc2c4bbd3805e7eec97b594be9febbdf9a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:radare:radare2:2.5.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.5.0"
                      },
                      {
                        "last_affected": "2.5.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9d348bcc2c4bbd3805e7eec97b594be9febbdf9a"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11383.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-11383-bbbe278c",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                    "21781600489549702972163629473157356904",
                    "184442265832565846871651635268013892995"
                  ]
                },
                "source": "https://github.com/radareorg/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a",
                "target": {
                  "file": "libr/anal/p/anal_avr.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-11383-d5ff7c64",
                "digest": {
                  "length": 455,
                  "function_hash": "2956492097207907596166250278438024525"
                },
                "source": "https://github.com/radareorg/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a",
                "target": {
                  "file": "libr/anal/p/anal_avr.c",
                  "function": "INST_HANDLER"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-11383-e2e6a765",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                    "195047055111794583475820447890840620557"
                  ]
                },
                "source": "https://github.com/radareorg/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a",
                "target": {
                  "file": "libr/core/cmd_anal.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-11383-f7104bde",
                "digest": {
                  "length": 10058,
                  "function_hash": "10219425347577413704488991727129091068"
                },
                "source": "https://github.com/radareorg/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a",
                "target": {
                  "file": "libr/core/cmd_anal.c",
                  "function": "cmd_anal_esil"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:32:56Z"
          }
        }
      ],
      "modified": "2026-10-20T13:32:56.205994660Z",
      "provider": "osv",
      "references": [
        "https://github.com/radare/radare2/issues/9943",
        "https://github.com/radare/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-11383",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387813,
  "published_at": "2018-05-22T19:29:00.617+00:00"
}