Escape to Parent Session Vulnerability in pkexec with --user nonpriv

CVE-2016-2568 · HIGH Severity

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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.

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