CVE-2024-57493
📋 TL;DR
A vulnerability in redoxOS relibc allows a local attacker to cause denial of service via the setsockopt function. This affects systems running redoxOS with vulnerable versions of relibc. The issue requires local access to exploit.
💻 Affected Systems
- redoxOS relibc
📦 What is this software?
Redox by Redox Os
⚠️ Risk & Real-World Impact
Worst Case
Complete system crash or kernel panic leading to sustained denial of service
Likely Case
Process crash or system instability affecting specific services
If Mitigated
Limited impact to individual processes if proper privilege separation exists
🎯 Exploit Status
Proof of concept available on GitHub, requires local user access
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: relibc after commit 98aa4ea5
Vendor Advisory: https://gitlab.redox-os.org/redox-os/relibc/-/issues/201
Restart Required: Yes
Instructions:
1. Update relibc to version including commit 98aa4ea5
2. Rebuild redoxOS with updated relibc
3. Reboot system
🔧 Temporary Workarounds
Restrict local user access
allLimit local user accounts to trusted users only
🧯 If You Can't Patch
- Implement strict access controls to limit local user privileges
- Monitor for abnormal process crashes and system instability
🔍 How to Verify
Check if Vulnerable:
Check relibc version/git commit hash - if before 98aa4ea5, system is vulnerableCheck Version:
Check relibc source or build configuration for commit hashVerify Fix Applied:
Verify relibc includes commit 98aa4ea5 or later📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes
- Kernel panic logs
- System instability reports
Network Indicators:
- None - local exploit only
SIEM Query:
Search for: process crashes OR kernel panic OR denial of service events from local users