CVE-2016-2568

CVE-2016-2568 affects polkit (pkexec) and is triggered when pkexec is used with --user nonpriv, enabling a local attacker to escape to the parent session via a crafted TIOCSTI ioctl that pushes characters into the terminal input buffer. The vulnerability is tied to PolicyKit’s handling of unprivi...

CVE-2026-4897

CVE-2026-4897 describes a vulnerability in polkit where a local user can feed an excessively long input to the setuid binary polkit-agent-helper-1 via stdin. The unbounded input can trigger an out-of-memory condition, leading to a Denial of Service on the system. Affected component: polkit’s help...