osv-2026-785
Vulnerability from osv_ossfuzz
Published
2026-05-21 00:11
Modified
2026-05-21 00:11
Summary
Heap-double-free in _dwarf_load_elf_symtab_symbols
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=514753154

Crash type: Heap-double-free
Crash state:
_dwarf_load_elf_symtab_symbols
_dwarf_elf_nlsetup
dwarf_init_path_dl_a
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "4b3cf93cc5819fbbef6d81812a08bae704c09aad:1ac98981519d789d11cd80997c0d431975765db0",
        "introduced_range": "4219b9d3c386f75ca5f47ade03def1a157057e49:dd3ca3226b2c48ff8588d02a74a90cdabea4e91c"
      },
      "ecosystem_specific": {
        "severity": "HIGH"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "libdwarf",
        "purl": "pkg:generic/libdwarf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "b77072b86835e5e2d0f7cece727c9251cec6c701"
            },
            {
              "fixed": "f49716564b3a263ce81c5319fecea4c9319e178f"
            },
            {
              "fixed": "1ac98981519d789d11cd80997c0d431975765db0"
            }
          ],
          "repo": "https://github.com/davea42/libdwarf-code",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=514753154\n\n```\nCrash type: Heap-double-free\nCrash state:\n_dwarf_load_elf_symtab_symbols\n_dwarf_elf_nlsetup\ndwarf_init_path_dl_a\n```\n",
  "id": "OSV-2026-785",
  "modified": "2026-05-21T00:11:24.087479Z",
  "published": "2026-05-21T00:11:24.087181Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=514753154"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Heap-double-free in _dwarf_load_elf_symtab_symbols"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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