pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution existsUpgrade policykit-1 | May 15, 2025 | May 15, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jan 19, 2016 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Feb 13, 2017 |
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