CVE-2019-16225

Publication date 11 September 2019

Last updated 12 January 2026

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in py-lmdb 0.97. For certain values of mp_flags, mdb_page_touch does not properly set up mc->mc_pg[mc->top], leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
py-lmdb	25.10 questing	Needs evaluation
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Needs evaluation
	19.10 eoan	Ignored end of life
	19.04 disco	Ignored end of life
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release

Notes

vyomydv

CVE disputed - no security issue in py-lmdb. MITRE has been contacted. This CVE is incorrectly attributed to py-lmdb, which is a Python binding for the LMDB C library, not an independent implementation. The reported issue involves loading a corrupted LMDB database, which would be a matter for the underlying liblmdb C library, not the Python bindings. Additionally, the liblmdb project has historically not accepted corrupted databases created through fuzzing as security vulnerabilities, absent real-world corruption scenarios (e.g., OS crashes, hardware failures).

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H