CVE-2021-45714
📋 TL;DR
This vulnerability in the rusqlite Rust crate involves a use-after-free bug in the create_aggregate_function method. Attackers could exploit this to execute arbitrary code or cause denial of service. Applications using vulnerable versions of rusqlite for SQLite database operations are affected.
💻 Affected Systems
- rusqlite Rust crate
📦 What is this software?
Rusqlite by Rusqlite Project
Rusqlite by Rusqlite Project
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Application crash causing denial of service, potentially with memory corruption that could be leveraged for further exploitation.
If Mitigated
Application instability or crashes without privilege escalation if proper sandboxing and memory protections are in place.
🎯 Exploit Status
Exploitation requires the attacker to trigger the vulnerable create_aggregate_function method, which typically requires some level of application interaction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.25.4 or 0.26.2
Vendor Advisory: https://rustsec.org/advisories/RUSTSEC-2021-0128.html
Restart Required: Yes
Instructions:
1. Update Cargo.toml to specify rusqlite >=0.25.4 or >=0.26.2. 2. Run 'cargo update' to fetch the patched version. 3. Rebuild and redeploy your application.
🔧 Temporary Workarounds
Avoid create_aggregate_function
allTemporarily stop using the vulnerable create_aggregate_function method until patched.
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all SQLite queries
- Deploy application in sandboxed environments with memory protection features enabled
🔍 How to Verify
Check if Vulnerable:
Check Cargo.lock for rusqlite version: grep -A2 -B2 rusqlite Cargo.lockCheck Version:
grep rusqlite Cargo.lock | head -1Verify Fix Applied:
Verify rusqlite version in Cargo.lock is >=0.25.4 or >=0.26.2📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory access violations
- Unexpected process termination
Network Indicators:
- Unusual database query patterns if SQLite is network-accessible
SIEM Query:
Process termination events from Rust applications using rusqlite