PYSEC-2019-238

    Dashboard / Vulnerabilities / PYSEC-2019-238

    PYSEC-2019-238

    Published: 11 Sept 2019Last Modified: 10 Jun 2026

    Summary:

    Details: An issue was discovered in py-lmdb 0.97. mdb_node_del does not validate a memmove in the case of an unexpected node->mn_hi, leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

    References: https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memory%20corruption%20vuln, https://pypi.org/project/lmdb, https://nvd.nist.gov/vuln/detail/CVE-2019-16226, https://github.com/advisories/GHSA-r8g9-w4f3-9crm

    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