CVE-2026-1110
📋 TL;DR
A buffer overflow vulnerability exists in the rtsp_parse_method function of cijliu librtsp, allowing local attackers to potentially execute arbitrary code or cause denial of service. This affects systems using librtsp 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 or denial of service affecting RTSP functionality.
If Mitigated
Limited impact if proper memory protections (ASLR, DEP) are enabled and the application runs with minimal privileges.
🎯 Exploit Status
Requires local access and knowledge of buffer overflow exploitation techniques. No public exploit code identified in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - vendor unresponsive
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Monitor GitHub repository for security updates
2. Consider switching to alternative RTSP library
3. Apply community patches if available
🔧 Temporary Workarounds
Disable or restrict librtsp usage
linuxRemove or disable applications using vulnerable librtsp library
Identify processes using librtsp: lsof | grep librtsp
Stop affected services
Apply memory protection controls
linuxEnable ASLR, DEP, and other memory protection mechanisms
sysctl -w kernel.randomize_va_space=2
Check /proc/sys/kernel/exec-shield
🧯 If You Can't Patch
- Implement strict access controls to limit local user access to systems running librtsp
- Monitor systems for abnormal process behavior or crashes related to RTSP functionality
🔍 How to Verify
Check if Vulnerable:
Check librtsp version/git commit: strings /path/to/librtsp.so | grep -i commit || git log --oneline -1Check Version:
git log --oneline -1 (if source) or check library metadataVerify Fix Applied:
Verify updated commit hash is later than 2ec1a81ad65280568a0c7c16420d7c10fde13b04📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Abnormal termination of RTSP-related processes
Network Indicators:
- Unusual local RTSP traffic patterns
SIEM Query:
process.name:librtsp AND (event.type:crash OR signal.name:SIGSEGV)