GHSA-8c7c-2c8j-3xfp

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    GHSA-8c7c-2c8j-3xfp

    Published: 24 May 2022Last Modified: 10 Jun 2026

    Summary: blosc2 heap-based buffer overflow

    Details: blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-29367, https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043ee, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442, https://github.com/Blosc/python-blosc2, https://github.com/Blosc/python-blosc2/releases/tag/v0.1.7, https://github.com/pypa/advisory-database/tree/main/vulns/blosc2/PYSEC-2020-343.yaml

    Affected packages

    Package

    Name: blosc2

    Purl: pkg:pypi/blosc2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.1.7

    Affected versions

    0.1.1
    0.1.2
    0.1.3
    0.1.4
    0.1.5
    0.1.6

    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
    GHSA-8c7c-2c8j-3xfp | CVE-DB