CVE-2024-57623
📋 TL;DR
This vulnerability in MonetDB Server's HEAP_malloc component allows attackers to cause Denial of Service (DoS) by sending specially crafted SQL statements. The issue affects MonetDB Server version 11.49.1, potentially disrupting database availability for organizations using this software.
💻 Affected Systems
- MonetDB Server
📦 What is this software?
Monetdb by Monetdb
⚠️ Risk & Real-World Impact
Worst Case
Complete database service disruption, making the MonetDB instance unavailable for all applications and users, potentially causing business operations to halt.
Likely Case
Database service crashes or becomes unresponsive, requiring manual restart and causing temporary service interruption.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting who can send SQL queries to the database.
🎯 Exploit Status
Exploitation requires ability to execute SQL statements against the MonetDB server, which typically requires database credentials or application-level access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 11.49.1 (check GitHub issue for specific fixed version)
Vendor Advisory: https://github.com/MonetDB/MonetDB/issues/7415
Restart Required: Yes
Instructions:
1. Check the GitHub issue for the specific fixed version. 2. Upgrade MonetDB Server to the patched version. 3. Restart the MonetDB service to apply the fix.
🔧 Temporary Workarounds
Restrict SQL Query Access
allLimit which users and applications can execute SQL statements against the MonetDB server to reduce attack surface.
Network Segmentation
allPlace MonetDB server behind firewall rules that restrict access to only trusted application servers.
🧯 If You Can't Patch
- Implement strict network access controls to limit who can connect to the MonetDB server
- Monitor database logs for unusual SQL patterns and implement rate limiting on SQL queries
🔍 How to Verify
Check if Vulnerable:
Check MonetDB version using 'mclient --version' or by querying the database. If version is 11.49.1, the system is vulnerable.Check Version:
mclient --versionVerify Fix Applied:
After upgrade, verify the version is no longer 11.49.1 and test that the database remains responsive when processing various SQL queries.📡 Detection & Monitoring
Log Indicators:
- Database crash logs
- Unusual SQL query patterns
- HEAP_malloc error messages in logs
Network Indicators:
- Sudden drop in database connections
- Unusual SQL traffic patterns
SIEM Query:
source="monetdb.log" AND ("crash" OR "HEAP_malloc" OR "denial of service")