CVE-2019-16225 : What You Need to Know

Py-lmdb 0.97 has a vulnerability where mdb_page_touch fails to set up mc->mc_pg[mc->top] properly for specific values of mp_flags. An unauthorized write operation can occur when accessing a data.mdb file provided by a malicious actor. This issue is limited to version 0.97 of the software.

Understanding CVE-2019-16225

This CVE entry describes a vulnerability in Py-lmdb 0.97 that could lead to unauthorized write operations.

What is CVE-2019-16225?

CVE-2019-16225 is a security vulnerability in Py-lmdb 0.97 that allows for unauthorized write operations when specific conditions are met during file access.

The Impact of CVE-2019-16225

The vulnerability could be exploited by a malicious actor to perform unauthorized write operations on the affected data.mdb file.

Technical Details of CVE-2019-16225

Py-lmdb 0.97 vulnerability details.

Vulnerability Description

The issue lies in mdb_page_touch failing to properly set up mc->mc_pg[mc->top] for certain mp_flags values.

Affected Systems and Versions

Product: Py-lmdb
Vendor: N/A
Version: 0.97

Exploitation Mechanism

Unauthorized write operations can occur when accessing a data.mdb file provided by a malicious actor.

Mitigation and Prevention

Steps to address CVE-2019-16225.

Immediate Steps to Take

Update Py-lmdb to a patched version if available.
Avoid accessing data.mdb files from untrusted sources.

Long-Term Security Practices

Regularly update software and libraries to patched versions.
Implement access controls and monitoring to detect unauthorized write operations.

Patching and Updates

Check for security patches or updates from the Py-lmdb project to address this vulnerability.