Description (CNA)
NLnet Labs Unbound, 1.22.0 up to and including version 1.26.1, contains a DNS-over-QUIC (DoQ) lifetime bug reachable by a remote DoQ client under multi-threaded operation. A client-triggered QUIC path migration can enter stream/connection cleanup while a mesh reply still retains a pointer to the DoQ stream. Cleanup frees the DoQ stream and when the pending mesh reply later completes it dereferences a stale pointer leading to a crash.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| NLnet Labs / Unbound | affected 1.22.0 before 1.26.2 |
CWE
CWE-416