CVE-2019-16226
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
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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.
Predictions
Exploit likelihood
30%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Affected 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Affected | — |
| forky | Affected | — |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-16226
- https://github.com/jnwatson/py-lmdb/issues/210
- https://github.com/LMDB/lmdb/blob/mdb.master/libraries/liblmdb/mdb.c#L8443-L8498
- https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memory%20corruption%20vuln
- https://github.com/jnwatson/py-lmdb
- https://github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-238.yaml
- https://pypi.org/project/lmdb
- https://security-tracker.debian.org/tracker/CVE-2019-16226
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.