CVE-2024-44912
📋 TL;DR
NASA CryptoLib v1.3.0 contains an out-of-bounds read vulnerability in the TM subsystem (crypto_tm.c) that could allow attackers to read sensitive memory contents or cause denial of service. This affects systems using NASA CryptoLib v1.3.0 for cryptographic operations. The vulnerability is particularly concerning for space and scientific computing applications that rely on this library.
💻 Affected Systems
- NASA CryptoLib
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure of sensitive cryptographic keys or memory contents leading to complete system compromise, or denial of service causing application crashes.
Likely Case
Application crashes or instability leading to denial of service, potentially exposing memory contents that could aid further attacks.
If Mitigated
Limited impact with proper memory protections and isolation, though still potentially causing application instability.
🎯 Exploit Status
Exploitation requires the attacker to control input to the vulnerable TM subsystem functions. The GitHub issue shows crash examples but no full weaponization details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.3.1 or later
Vendor Advisory: https://github.com/nasa/CryptoLib/issues/268
Restart Required: Yes
Instructions:
1. Check current CryptoLib version. 2. Update to v1.3.1 or later from the official GitHub repository. 3. Recompile and relink applications using the library. 4. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation for all calls to CryptoLib TM subsystem functions
Memory Protection
linuxEnable ASLR and other memory protection mechanisms to reduce impact
echo 2 > /proc/sys/kernel/randomize_va_space
🧯 If You Can't Patch
- Isolate systems using CryptoLib behind firewalls with strict input filtering
- Implement monitoring for abnormal memory access patterns and application crashes
🔍 How to Verify
Check if Vulnerable:
Check if CryptoLib version is 1.3.0 by examining library files or checking application dependenciesCheck Version:
strings libcryptolib.so | grep -i version || check package manager for cryptolib versionVerify Fix Applied:
Verify CryptoLib version is 1.3.1 or later and test TM subsystem functions with boundary inputs📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Abnormal memory access patterns in system logs
- Core dumps from CryptoLib processes
Network Indicators:
- Unusual input patterns to applications using CryptoLib
- Repeated connection attempts to services using vulnerable library
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "SIGSEGV") AND process="*cryptolib*"