CVE-2025-30077
📋 TL;DR
This vulnerability in ONOS onos-lib-go allows an attacker to trigger an index out-of-range panic in the ASN.1 APER GetBitString function when a zero value is passed for numBits. This affects systems using SD-RAN ONOS with the vulnerable library version, potentially causing denial of service.
💻 Affected Systems
- Open Networking Foundation SD-RAN ONOS
- onos-lib-go library
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption through denial of service, potentially affecting SD-RAN network operations and availability.
Likely Case
Service instability or crashes in affected ONOS components, leading to temporary network management disruptions.
If Mitigated
Minimal impact if proper input validation and error handling are implemented at application layer.
🎯 Exploit Status
Exploitation requires sending specifically crafted ASN.1 encoded data to trigger the zero numBits condition.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check latest onos-lib-go releases after 0.10.28
Vendor Advisory: https://github.com/onosproject/onos-lib-go/issues/295
Restart Required: Yes
Instructions:
1. Update onos-lib-go to patched version. 2. Rebuild and redeploy affected ONOS components. 3. Restart ONOS services.
🔧 Temporary Workarounds
Input validation wrapper
allImplement application-level validation to reject zero numBits values before passing to GetBitString
# Implement custom validation in code calling GetBitString
🧯 If You Can't Patch
- Implement network segmentation to isolate SD-RAN management interfaces
- Deploy rate limiting and input sanitization at API gateways
🔍 How to Verify
Check if Vulnerable:
Check onos-lib-go version in use: grep -r "0.10.28" in dependency filesCheck Version:
grep onos-lib-go go.mod || check package manager for versionVerify Fix Applied:
Verify updated version is deployed and test ASN.1 decoding with edge cases📡 Detection & Monitoring
Log Indicators:
- PANIC messages containing 'index out of range'
- ASN.1 decoding errors
- ONOS service crashes
Network Indicators:
- Unusual ASN.1 encoded traffic to ONOS management ports
- Repeated connection attempts with malformed data
SIEM Query:
source="onos" AND ("panic" OR "out of range" OR "GetBitString")