CVE-2021-36977

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    CVE-2021-36977

    Published: 20 Jul 2021Last Modified: 8 Jul 2026

    Summary:

    Details: matio (aka MAT File I/O Library) 1.5.20 and 1.5.21 has a heap-based buffer overflow in H5MM_memcpy (called from H5MM_malloc and H5C_load_entry), related to use of HDF5 1.12.0.

    References: https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2021-440.yaml, https://github.com/HDFGroup/hdf5/issues/272, https://github.com/google/oss-fuzz/issues/4999, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31265, https://github.com/google/oss-fuzz-vulns/commit/37b781ace1b4228fc36483bb7e30c72ea9d4c3d6

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -37b781ace1b4228fc36483bb7e30c72ea9d4c3d6

    Affected versions

    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-2021-36977 | CVE-DB