CVE-2023-43642

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    CVE-2023-43642

    Published: 25 Sept 2023Last Modified: 12 Aug 2026

    Summary: Missing upper bound check on chunk length in snappy-java

    Details: snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. The SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too large chunk size. Due to missing upper bound check on chunk length, an unrecoverable fatal error can occur. All versions of snappy-java including the latest released version 1.1.10.3 are vulnerable to this issue. A fix has been introduced in commit `9f8c3cf74` which will be included in the 1.1.10.4 release. Users are advised to upgrade. Users unable to upgrade should only accept compressed data from trusted sources.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43642.json, https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfv, https://nvd.nist.gov/vuln/detail/CVE-2023-43642, https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9f8c3cf74223ed0a8a834134be9c917b9f10ceb5

    Affected versions

    v1.1.10.3
    v1.1.10.2
    v1.1.10.1
    v1.1.10.0
    v1.1.9.1
    v1.1.9.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-43642 | CVE-DB