CVE-2016-2568 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Reference

http://www.openwall.com/lists/oss-security/2016/02/26/3 https://bugzilla.redhat.com/show_bug.cgi?id=1300746

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8