Description (CNA)
Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time, handlePacket drops every packet other than the open confirmation/failure, without blocking and without tearing down the connection.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| golang.org/x/crypto / golang.org/x/crypto/ssh | affected 0 before 0.56.0 |
CWE
No CWE identifiers supplied.
References
- https://go.dev/issue/81316
- https://go.dev/cl/826504
- https://groups.google.com/g/golang-announce/c/1y3fb2np35U
- https://pkg.go.dev/vuln/GO-2026-6354
ADP enrichment
No English description supplied.
No references supplied.