The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade golang-go.crypto | Jul 30, 2024 | Apr 4, 2017 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 4, 2017 |
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