GHSA-fm67-cv37-96ff

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    GHSA-fm67-cv37-96ff

    Published: 5 Jul 2022Last Modified: 7 Jul 2026

    Summary: Potential double free of buffer during string decoding

    Details: ### Impact _What kind of vulnerability is it? Who is impacted?_ When an error occurs while reallocating the buffer for string decoding, the buffer gets freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger from Python. ### Patches _Has the problem been patched? What versions should users upgrade to?_ Users should upgrade to UltraJSON 5.4.0. ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ There is no workaround. ### For more information If you have any questions or comments about this advisory: * Open an issue in [UltraJSON](http://github.com/ultrajson/ultrajson/issues)

    References: https://github.com/ultrajson/ultrajson/security/advisories/GHSA-fm67-cv37-96ff, https://nvd.nist.gov/vuln/detail/CVE-2022-31117, https://github.com/ultrajson/ultrajson/commit/9c20de0f77b391093967e25d01fb48671104b15b, https://github.com/ultrajson/ultrajson, https://lists.fedoraproject.org/archives/list/[email protected]/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2, https://lists.fedoraproject.org/archives/list/[email protected]/message/OPPU5FZP3LCTXYORFH7NHUMYA5X66IA7

    Affected packages

    Package

    Name: ujson

    Purl: pkg:pypi/ujson

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.4.0

    Affected versions

    1.15

    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-fm67-cv37-96ff | CVE-DB