GHSA-3mv2-5q57-2v8h
GHSA-3mv2-5q57-2v8h is a CWE-362 vulnerability. O3 Security confirms whether GHSA-3mv2-5q57-2v8h is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
FreeRDP - Use-After-Free via Race Condition in DRDYNVC Channel Callback
Description
FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.
Detection & mitigation playbook
VulnerabilityDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of the affected component has shipped for GHSA-3mv2-5q57-2v8h yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-3mv2-5q57-2v8h is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-3mv2-5q57-2v8h. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-3mv2-5q57-2v8h in your dependencies?
O3 detects GHSA-3mv2-5q57-2v8h across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.