CVE-2019-16227

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.

CVSS v4.0 GitHub

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

2.04% chance of exploitation in the next 30 days, 81st percentile

Published

2019-09-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memcpy%20illegal%20dst42★ · 2019-10-31

Security advisories

• advisories/GHSA-pf3p-v9xp-mrvf

References

• CVE Record
• NVD entry