GHSA-r8g9-w4f3-9crm

LMDB invalid write

Source: GitHub Advisory Database (reviewed) High CVE-2019-16226

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	lmdb	<= 0.97	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2019-16226 advisory
https://github.com/jnwatson/py-lmdb/issues/210 web
https://github.com/LMDB/lmdb/blob/mdb.master/libraries/liblmdb/mdb.c#L8443-L8498 web
https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memory%20corruption%20vuln web
https://github.com/jnwatson/py-lmdb package
https://github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-238.yaml web
https://pypi.org/project/lmdb web