CVE-2025-4574
📋 TL;DR
A race condition in crossbeam-channel's Channel type Drop implementation can cause double-free memory corruption when channels are dropped concurrently. This affects Rust applications using vulnerable versions of the crossbeam-channel crate. Memory corruption could lead to crashes or potentially arbitrary code execution.
💻 Affected Systems
- crossbeam-channel Rust crate
⚠️ 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
Memory corruption leading to arbitrary code execution, application crash, or data corruption.
Likely Case
Application crashes or instability due to memory corruption.
If Mitigated
No impact if patched or if concurrent channel dropping doesn't occur.
🎯 Exploit Status
Exploitation depends on application-specific concurrency patterns.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: crossbeam-channel 0.5.13
Vendor Advisory: https://github.com/crossbeam-rs/crossbeam/pull/1187
Restart Required: Yes
Instructions:
1. Update Cargo.toml to require crossbeam-channel >=0.5.13. 2. Run 'cargo update' to fetch new version. 3. Rebuild and redeploy application.
🔧 Temporary Workarounds
Avoid concurrent channel dropping
allModify application code to avoid dropping channels from multiple threads simultaneously.
🧯 If You Can't Patch
- Isolate affected applications in containers or VMs with limited privileges
- Implement monitoring for application crashes or abnormal behavior
🔍 How to Verify
Check if Vulnerable:
Check Cargo.lock or run 'cargo tree | grep crossbeam-channel' to see installed version.Check Version:
cargo tree | grep crossbeam-channelVerify Fix Applied:
Verify crossbeam-channel version is 0.5.13 or higher in Cargo.lock.📡 Detection & Monitoring
Log Indicators:
- Application crashes, segmentation faults, memory corruption errors
Network Indicators:
- None specific to this vulnerability
SIEM Query:
Application logs containing 'segmentation fault', 'double free', or 'memory corruption'