Description
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 (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memory%20corruption%20vuln
Scores
CVSS v3
7.5
EPSS
0.0043
EPSS Percentile
62.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-787
Status
published
Products (2)
py-lmdb_project/py-lmdb
< 0.97
pypi/lmdb
0PyPI
Published
Sep 11, 2019
Tracked Since
Feb 18, 2026