Security advisory

{
  "id": "52af5c1ba3cdaec31e86dadb116340d0102bd7d03bedf79a610f0c1a67cc11de",
  "url": "https://osv.dev/vulnerability/CVE-2021-45941",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-45941",
    "summary": "libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).",
    "evidence": "osv:CVE-2021-45941",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-45941",
      "aliases": [
        "BIT-bpftool-2021-45941",
        "CVE-2021-45941"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libbpf/libbpf",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4884bf3dbd08762564de71608da9941b50184f8b"
                },
                {
                  "last_affected": "56794b31eea0a6245f194b5915e3ed867be144fe"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libbpf_project:libbpf:0.6.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.6.0"
                      },
                      {
                        "last_affected": "0.6.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:libbpf_project:libbpf:0.6.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.6.1"
                      },
                      {
                        "last_affected": "0.6.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.6.0",
            "0.6.1",
            "v0.6.1",
            "v0.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45941.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:06.628477639Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40957",
        "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libbpf/OSV-2021-1576.yaml"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-45941",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441018,
  "published_at": "2022-01-01T01:15:08.99+00:00"
}