A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade linux-pam | Aug 22, 2024 | Dec 17, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 17, 2020 |
| Gentoo Linux | — | Upgrade sys-libs/pam. | Dec 7, 2020 | Dec 7, 2020 |
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