The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade putty | Aug 30, 2017 | Mar 27, 2015 |
| Debian | — | Upgrade putty | Jul 30, 2024 | Mar 27, 2015 |
| Freebsd | — | Upgrade putty | Dec 10, 2025 | Mar 5, 2015 |
| Suse | — | Upgrade puttyUpgrade putty-debugsourceUpgrade putty-debuginfo | Dec 18, 2015 | Mar 11, 2015 |
| Ubuntu | — | Upgrade putty | Nov 19, 2024 | Mar 27, 2015 |
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