CVE-2026-1108
📋 TL;DR
A buffer overflow vulnerability exists in the rtsp_rely_dumps function of cijliu librtsp, allowing local attackers to potentially execute arbitrary code or crash the application. This affects all versions up to commit 2ec1a81ad65280568a0c7c16420d7c10fde13b04. The vendor has not responded to disclosure attempts.
💻 Affected Systems
- cijliu librtsp
📦 What is this software?
Librtsp by Cijliu
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation leading to full system compromise via arbitrary code execution.
Likely Case
Application crash (denial of service) or limited data corruption.
If Mitigated
Minimal impact if proper access controls and sandboxing prevent local attacker access.
🎯 Exploit Status
Requires local access; buffer overflow exploitation typically requires specific conditions and skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Monitor vendor repository for security updates. 2. Apply patch when available. 3. Rebuild and redeploy librtsp. 4. Restart dependent services.
🔧 Temporary Workarounds
Disable vulnerable function
allModify code to avoid calling rtsp_rely_dumps function if possible.
# Requires source code modification; no standard command
Apply memory protection
linuxEnable ASLR and stack protection on systems using librtsp.
echo 2 > /proc/sys/kernel/randomize_va_space
gcc -fstack-protector-all -o program program.c
🧯 If You Can't Patch
- Restrict local access to systems running vulnerable librtsp.
- Monitor for abnormal process behavior or crashes.
🔍 How to Verify
Check if Vulnerable:
Check librtsp git commit hash; if earlier than 2ec1a81ad65280568a0c7c16420d7c10fde13b04, vulnerable.Check Version:
git log --oneline -1 | grep -o '[0-9a-f]\{40\}'Verify Fix Applied:
Verify commit hash is newer than 2ec1a81ad65280568a0c7c16420d7c10fde13b04.📡 Detection & Monitoring
Log Indicators:
- Segmentation fault logs
- Abnormal termination of processes using librtsp
Network Indicators:
- None - local vulnerability
SIEM Query:
process.name: "*librtsp*" AND event.type: "crash"