osv-2021-1070
Vulnerability from osv_ossfuzz
Published
2021-07-29 00:01
Modified
2026-01-29 14:10
Summary
Heap-buffer-overflow in ZSTD_decompressBlock_internal
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36623

Crash type: Heap-buffer-overflow READ 4
Crash state:
ZSTD_decompressBlock_internal
ZSTD_decompressMultiFrame
ZSTD_decompressDCtx
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "c-blosc2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "861ba79f31393dec0a0782ca11cf32cebb6f6610"
            }
          ],
          "repo": "https://github.com/Blosc/c-blosc2.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "v2.0.0",
        "v2.0.0-rc2",
        "v2.0.0.rc1",
        "v2.0.1",
        "v2.0.2",
        "v2.0.3",
        "v2.0.4",
        "v2.1.0",
        "v2.1.1",
        "v2.2.0",
        "v2.3.0",
        "v2.3.1",
        "v2.4.0",
        "v2.4.1",
        "v2.4.2",
        "v2.4.3",
        "v2.5.0",
        "v2.6.0",
        "v2.6.1",
        "v2.7.0",
        "v2.7.1",
        "v2.8.0",
        "v2.9.0",
        "v2.9.1",
        "v2.9.2",
        "v2.9.3",
        "v2.10.0",
        "v2.10.1",
        "v2.10.2",
        "v2.10.3",
        "v2.10.4",
        "v2.10.5",
        "v2.11.0",
        "v2.11.1",
        "v2.11.2",
        "v2.11.3",
        "v2.12.0",
        "v2.13.0",
        "v2.13.1",
        "v2.13.2",
        "v2.14.0",
        "v2.14.1",
        "v2.14.2",
        "v2.14.3",
        "v2.14.4",
        "v2.15.0",
        "v2.15.1",
        "v2.15.2",
        "v2.16.0",
        "v2.17.0",
        "v2.17.1",
        "v2.18.0",
        "v2.19.0",
        "v2.19.1",
        "v2.20.0",
        "v2.21.0",
        "v2.21.1",
        "v2.21.2",
        "v2.21.3",
        "v2.22.0",
        "v2.23.0"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36623\n\n```\nCrash type: Heap-buffer-overflow READ 4\nCrash state:\nZSTD_decompressBlock_internal\nZSTD_decompressMultiFrame\nZSTD_decompressDCtx\n```\n",
  "id": "OSV-2021-1070",
  "modified": "2026-01-29T14:10:02.243833Z",
  "published": "2021-07-29T00:01:10.187569Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36623"
    }
  ],
  "summary": "Heap-buffer-overflow in ZSTD_decompressBlock_internal"
}


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