CVE-2025-6965: SQLite Buffer Overflow Vulnerability

CVE-2025-6965 Overview

There exists a vulnerability in SQLite versions before 3.50.2 where the number of aggregate terms could exceed the number of columns available. This could lead to a memory corruption issue. We recommend upgrading to version 3.50.2 or above.

Critical Impact
This vulnerability can cause memory corruption potentially leading to denial of service or other impacts.

Affected Products

sqlite sqlite

Discovery Timeline

Not Available - Vulnerability discovered by Not Available
Not Available - Responsible disclosure to sqlite
Not Available - CVE CVE-2025-6965 assigned
Not Available - sqlite releases security patch
2025-07-15 - CVE CVE-2025-6965 published to NVD
2025-11-04 - Last updated in NVD database

Technical Details for CVE-2025-6965

Vulnerability Analysis

The vulnerability arises from an integer overflow issue where the number of aggregate terms exceeds the available columns, leading to possible buffer overflow and memory corruption.

Root Cause

Improper handling of the number of aggregate terms in database queries causing memory management errors.

Attack Vector

Attackers could exploit this vulnerability over a network by sending crafted SQL queries.

sql

-- Example exploitation code (sanitized)
SELECT group_concat(large_column) OVER (
    PARTITION BY 1
) FROM sqlite_master;

Detection Methods for CVE-2025-6965

Indicators of Compromise

Unusual memory usage
Unexpected crash reports
Log entries showing failed SQL queries

Detection Strategies

Implement anomaly detection systems to monitor database queries and alert on unusual patterns and high memory usage.

Monitoring Recommendations

Continuously monitor SQLite logs and memory usage, paying special attention to query patterns and database performance metrics.

How to Mitigate CVE-2025-6965

Immediate Actions Required

Update to SQLite version 3.50.2 or later
Review database query logs for abnormalities
Implement strong input validation on SQL queries

Patch Information

The patch is available at SQLite Patch.

Workarounds

Consider deploying application-level input validation to prevent malicious inputs from reaching the database.

bash

# Configuration example
sudo apt-get update
sudo apt-get install --only-upgrade sqlite