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CVE-2026-61898 The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before…
Description
The Ubuntu-specific language helper scripts (save-to-pam-env, update-langlist) shipped with accountsservice before 23.13.9-8ubuntu7 treat the user-controlled LANGUAGE entry in ~/.pam_environment as trusted input. The value is interpolated unescaped into a GNU sed replacement expression, allowing an attacker to inject a sed 'e' flag and arbitrary shell commands that execute with the privileges of the AccountsService helper process (real UID 0) via the SetLanguage D-Bus method.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| accountsservice 23.13 | 23.13.9-2ubuntu6 → < 23.13.9-8ubuntu7 | 23.13.9-2ubuntu6.1 |
| accountsservice 22.07 | 22.07.5-2ubuntu1 → < 22.07.5-2ubuntu1.6 | 22.07.5-2ubuntu1.6 |