CVE-2019-16224: py-lmdb Invalid write operation

May 24, 2022 (updated September 30, 2024)

An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy destination, leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

References

github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20initialization%20vuln
github.com/advisories/GHSA-9q62-r72g-pvv7
github.com/jnwatson/py-lmdb
github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-236.yaml
nvd.nist.gov/vuln/detail/CVE-2019-16224
pypi.org/project/lmdb

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