CVE-2019-16226: LMDB invalid write

CVE-2019-16226 · Severity: low · CVSS 3.1 · Published 2019-09-11

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.

Technologies: lmdb (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2019-16226 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2019-16226 being exploited in the wild.
How severe is CVE-2019-16226?
Low severity, with a CVSS score of 3.1, published 11 September 2019.
Which products and versions are affected?
lmdb (PyPI) ECOSYSTEM:introduced=0,fixed=0.98, ECOSYSTEM:introduced=0,last_affected=0.97.
Is there a fix for CVE-2019-16226?
Yes. lmdb (PyPI): upgrade to 0.98 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2019-16226?
Check whether you run lmdb (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • lmdb (PyPI): upgrade to 0.98 or later
    pip install "lmdb>=0.98"

Affected products

  • lmdb (PyPI) ECOSYSTEM:introduced=0,fixed=0.98, ECOSYSTEM:introduced=0,last_affected=0.97

Identifiers

  • CVE-2019-16226
  • GHSA-r8g9-w4f3-9crm
  • PYSEC-2019-238

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