GO-2026-6354
Prevent DoS on deadlocked undecided channel in golang.org/x/crypto/ssh
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-78662
Description
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.
Paquets affectés
| Paquet | Versions |
|---|---|
| Go · golang.org/x/crypto | introduced 0, fixed 0.56.0 |
Références
- https://go.dev/issue/81316 REPORT
- https://go.dev/cl/826504 FIX
- https://groups.google.com/g/golang-announce/c/1y3fb2np35U WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |