CVE-2023-34455
Vulnerability from cvelistv5
Published
2023-06-15 17:15
Modified
2024-08-02 16:10
Summary
snappy-java's unchecked chunk length leads to DoS
Impacted products
xerialsnappy-java
Show details on NVD website


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          "vendor": "xerial",
          "versions": [
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          "value": "snappy-java is a fast compressor/decompressor for Java. Due to use of an unchecked chunk length, an unrecoverable fatal error can occur in versions prior to 1.1.10.1.\n\nThe code in the function hasNextChunk in the fileSnappyInputStream.java checks if a given stream has more chunks to read. It does that by attempting to read 4 bytes. If it wasn\u2019t possible to read the 4 bytes, the function returns false. Otherwise, if 4 bytes were available, the code treats them as the length of the next chunk.\n\nIn the case that the `compressed` variable is null, a byte array is allocated with the size given by the input data. Since the code doesn\u2019t test the legality of the `chunkSize` variable, it is possible to pass a negative number (such as 0xFFFFFFFF which is -1), which will cause the code to raise a `java.lang.NegativeArraySizeException` exception. A worse case would happen when passing a huge positive value (such as 0x7FFFFFFF), which would raise the fatal `java.lang.OutOfMemoryError` error.\n\nVersion 1.1.10.1 contains a patch for this issue."
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      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "name": "https://github.com/xerial/snappy-java/security/advisories/GHSA-qcwq-55hx-v3vh",
          "tags": [
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          "url": "https://github.com/xerial/snappy-java/security/advisories/GHSA-qcwq-55hx-v3vh"
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          "url": "https://github.com/xerial/snappy-java/commit/3bf67857fcf70d9eea56eed4af7c925671e8eaea"
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          "tags": [
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          "url": "https://github.com/xerial/snappy-java/blob/master/src/main/java/org/xerial/snappy/SnappyInputStream.java"
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          "url": "https://security.netapp.com/advisory/ntap-20230818-0009/"
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      "source": {
        "advisory": "GHSA-qcwq-55hx-v3vh",
        "discovery": "UNKNOWN"
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      "title": "snappy-java\u0027s unchecked chunk length leads to DoS"
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-34455",
    "datePublished": "2023-06-15T17:15:00.311Z",
    "dateReserved": "2023-06-06T16:16:53.559Z",
    "dateUpdated": "2024-08-02T16:10:07.032Z",
    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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