PYSEC-2019-239

    Dashboard / Vulnerabilities / PYSEC-2019-239

    PYSEC-2019-239

    Published: 11 Sept 2019Last Modified: 10 Jun 2026

    Summary:

    Details: An issue was discovered in py-lmdb 0.97. For certain values of mn_flags, mdb_cursor_set triggers a memcpy with an invalid write operation within mdb_xcursor_init1. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

    References: https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memcpy%20illegal%20dst, https://pypi.org/project/lmdb, https://nvd.nist.gov/vuln/detail/CVE-2019-16227, https://github.com/advisories/GHSA-pf3p-v9xp-mrvf

    Affected packages

    Package

    Name: lmdb

    Purl: pkg:pypi/lmdb

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.98

    Affected versions

    0.58

    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