CVE-2024-1013
📋 TL;DR
An out-of-bounds stack write vulnerability in unixODBC on 64-bit architectures allows attackers to corrupt memory by writing 8 bytes into a 4-byte buffer. This can lead to denial of service or potentially arbitrary code execution. Systems using unixODBC on 64-bit architectures are affected, with big-endian systems being particularly vulnerable.
💻 Affected Systems
- unixODBC
📦 What is this software?
Unixodbc by Unixodbc
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if combined with other vulnerabilities or specific configurations.
Likely Case
Denial of service through application crashes or system instability.
If Mitigated
Limited impact with proper memory protections and exploit mitigations in place.
🎯 Exploit Status
Exploitation requires the attacker to control input to unixODBC functions. The vulnerability is in the library itself, so any application using unixODBC could be affected.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor-specific patches (e.g., Red Hat has released updates)
Vendor Advisory: https://access.redhat.com/security/cve/CVE-2024-1013
Restart Required: Yes
Instructions:
1. Check your distribution's security advisories. 2. Apply the latest unixODBC package update. 3. Restart affected services or applications using unixODBC.
🔧 Temporary Workarounds
Disable unixODBC if unused
linuxRemove or disable unixODBC if not required for system functionality.
sudo apt remove unixodbc
sudo yum remove unixODBC
🧯 If You Can't Patch
- Implement strict input validation for applications using unixODBC
- Use exploit mitigations like ASLR and stack canaries if supported
🔍 How to Verify
Check if Vulnerable:
Check unixODBC version and compare with patched versions from your vendor.Check Version:
odbc_config --versionVerify Fix Applied:
Verify the installed unixODBC package version matches or exceeds the patched version from your vendor.📡 Detection & Monitoring
Log Indicators:
- Application crashes or segmentation faults in processes using unixODBC
- Unexpected memory access errors in system logs
Network Indicators:
- Unusual database connection attempts or ODBC-related network traffic patterns
SIEM Query:
Process crashes with 'unixODBC' or 'odbc' in command line or error messages