CVE-2019-16228
HIGH7.5EPSS 0.25%py-lmdb Divide by Zero interruptions
Published: 5/24/2022Modified: 4/28/2026
Description
An issue was discovered in py-lmdb 0.97. There is a divide-by-zero error in the function mdb_env_open2 if mdb_env_read_header obtains a zero value for a certain size field. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.
Affected packages (3)
- Debian/py-lmdbfrom 0
- PyPI/lmdbfrom 0, <= 0.97
- PyPI/lmdbfrom 0, < 0.98
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-16228
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-16228
- PATCHhttps://github.com/jnwatson/py-lmdb
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-240.yaml
- WEBhttps://github.com/TeamSeri0us/pocs/tree/master/lmdb/FPE
- WEBhttps://pypi.org/project/lmdb