libsidplayfp through 3.1.1 Heap Out-of-Bounds Read via SidTuneBase::acceptSidTune

{
  "id": "4dbb13812d5d74403fc7c109b13a024b4da24e7fcdb8158342e0e62164fcc20b",
  "url": "https://osv.dev/vulnerability/CVE-2026-111148",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libsidplayfp through 3.1.1 Heap Out-of-Bounds Read via SidTuneBase::acceptSidTune",
    "summary": "libsidplayfp through 3.1.1 contains a heap out-of-bounds read vulnerability that allows attackers to crash applications by supplying a PSID/RSID file with an unchecked data offset. Attackers can set the header data offset beyond the file size, wrapping the length calculation so resolveAddrs() reads up to 64 KiB past the heap buffer.",
    "evidence": "osv:CVE-2026-111148",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-111148",
      "aliases": [
        "CVE-2026-111148"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libsidplayfp/libsidplayfp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "732fa8ec8131fc75aafc2eaea583ddcdeea2a3cc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.1.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.1.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.1.1",
            "v3.1.0",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v3.0.0b",
            "v3.0.0a2",
            "v3.0.0a",
            "v2.14.0",
            "v2.13.0",
            "v2.12.0",
            "v2.11.0",
            "v2.10.0",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.6.0",
            "v2.5.0",
            "v2.5.0a2",
            "v2.5.0a",
            "v2.4.1",
            "v2.4.0",
            "v2.3.1",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.1",
            "v2.1.0",
            "0.1.0@235"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111148.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.535915324Z",
      "provider": "osv",
      "references": [
        "https://github.com",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111148.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111148",
        "https://www.vulncheck.com/advisories/libsidplayfp-through-3.1.1-heap-out-of-bounds-read-via-sidtunebase-acceptsidtune",
        "https://github.com/libsidplayfp/libsidplayfp",
        "https://github.com/libsidplayfp/libsidplayfp/blob/732fa8ec8131fc75aafc2eaea583ddcdeea2a3cc/src/sidtune/SidTuneBase.cpp#L295-L300",
        "https://github.com/libsidplayfp/libsidplayfp/blob/732fa8ec8131fc75aafc2eaea583ddcdeea2a3cc/src/sidtune/SidTuneBase.cpp#L488-L500",
        "https://hackmd.io/@haind-pwn/libsidplayfp-psid-dataoffset-underflow-oob-read"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111148.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111148",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520413,
  "published_at": "2026-10-15T18:57:38.114+00:00"
}