GHSA-gwq9-9ffj-mvrv — snappy-java: Heap buffer overflow in Snappy.uncompress*Array typed-array methods

The advisory, in context

Impact

Snappy.uncompressCharArray, uncompressShortArray, uncompressIntArray, uncompressLongArray, uncompressFloatArray and uncompressDoubleArray sized the result array by dividing the declared uncompressed byte length by the element size, but native code wrote the full byte length. If the declared length is not a multiple of the element size, up to 7 bytes are written past the end of the Java array, corrupting the heap.

Patches

Fixed in 1.1.10.9 (#739). These methods now reject uncompressed lengths that are not a multiple of the element size with SnappyIOException.

Workarounds

Check that Snappy.uncompressedLength(input) is a multiple of the element size before calling these methods.

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

org.xerial.snappy:snappy-java Maven

Ecosystem versions

Earlier releases before 1.1.10.9

Fixed in 1.1.10.9

83 explicitly affected versions

1.0.1-rc1, 1.0.1-rc2, 1.0.1-rc3, 1.0.1-rc4, 1.0.3, 1.0.3-rc1, 1.0.3-rc2, 1.0.3-rc3, 1.0.3-rc4, 1.0.3.1, 1.0.3.2, 1.0.3.3, 1.0.4, 1.0.4.1, 1.0.5, 1.0.5-M1, 1.0.5-M2, 1.0.5-M3, 1.0.5-M4, 1.0.5.1, 1.0.5.2, 1.0.5.3, 1.0.5.4, 1.1.0, 1.1.0-M1, 1.1.0-M2, 1.1.0-M3, 1.1.0-M4, 1.1.0.1, 1.1.1, 1.1.1-M1, 1.1.1-M2, 1.1.1-M3, 1.1.1-M4, 1.1.1.1, 1.1.1.2, 1.1.1.3, 1.1.1.4, 1.1.1.5, 1.1.1.6, 1.1.1.7, 1.1.10.0, 1.1.10.1, 1.1.10.2, 1.1.10.3, 1.1.10.4, 1.1.10.5, 1.1.10.6, 1.1.10.7, 1.1.10.8, 1.1.2, 1.1.2-M1, 1.1.2-RC1, 1.1.2-RC2, 1.1.2-RC3, 1.1.2.1, 1.1.2.2, 1.1.2.3, 1.1.2.4, 1.1.2.5, 1.1.2.6, 1.1.3-M1, 1.1.3-M2, 1.1.4, 1.1.4-M1, 1.1.4-M2, 1.1.4-M3, 1.1.7, 1.1.7.1, 1.1.7.2, 1.1.7.3, 1.1.7.4, 1.1.7.5, 1.1.7.6, 1.1.7.7, 1.1.7.8, 1.1.8, 1.1.8.1, 1.1.8.2, 1.1.8.3, 1.1.8.4, 1.1.9.0, 1.1.9.1

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "1.1.10.9"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "1.0.1-rc1",
    "1.0.1-rc2",
    "1.0.1-rc3",
    "1.0.1-rc4",
    "1.0.3",
    "1.0.3-rc1",
    "1.0.3-rc2",
    "1.0.3-rc3",
    "1.0.3-rc4",
    "1.0.3.1",
    "1.0.3.2",
    "1.0.3.3",
    "1.0.4",
    "1.0.4.1",
    "1.0.5",
    "1.0.5-M1",
    "1.0.5-M2",
    "1.0.5-M3",
    "1.0.5-M4",
    "1.0.5.1",
    "1.0.5.2",
    "1.0.5.3",
    "1.0.5.4",
    "1.1.0",
    "1.1.0-M1",
    "1.1.0-M2",
    "1.1.0-M3",
    "1.1.0-M4",
    "1.1.0.1",
    "1.1.1",
    "1.1.1-M1",
    "1.1.1-M2",
    "1.1.1-M3",
    "1.1.1-M4",
    "1.1.1.1",
    "1.1.1.2",
    "1.1.1.3",
    "1.1.1.4",
    "1.1.1.5",
    "1.1.1.6",
    "1.1.1.7",
    "1.1.10.0",
    "1.1.10.1",
    "1.1.10.2",
    "1.1.10.3",
    "1.1.10.4",
    "1.1.10.5",
    "1.1.10.6",
    "1.1.10.7",
    "1.1.10.8",
    "1.1.2",
    "1.1.2-M1",
    "1.1.2-RC1",
    "1.1.2-RC2",
    "1.1.2-RC3",
    "1.1.2.1",
    "1.1.2.2",
    "1.1.2.3",
    "1.1.2.4",
    "1.1.2.5",
    "1.1.2.6",
    "1.1.3-M1",
    "1.1.3-M2",
    "1.1.4",
    "1.1.4-M1",
    "1.1.4-M2",
    "1.1.4-M3",
    "1.1.7",
    "1.1.7.1",
    "1.1.7.2",
    "1.1.7.3",
    "1.1.7.4",
    "1.1.7.5",
    "1.1.7.6",
    "1.1.7.7",
    "1.1.7.8",
    "1.1.8",
    "1.1.8.1",
    "1.1.8.2",
    "1.1.8.3",
    "1.1.8.4",
    "1.1.9.0",
    "1.1.9.1"
  ]
}

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snappy-java: Heap buffer overflow in Snappy.uncompress*Array typed-array methods

The advisory, in context

Impact

Patches

Workarounds

Affected packages

References