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Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade dropbear | Jul 30, 2024 | Oct 25, 2013 |
| Freebsd | — | Upgrade dropbear | Dec 10, 2025 | Oct 17, 2013 |
| Suse | — | Upgrade dropbear | Dec 12, 2013 | Oct 25, 2013 |
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