CVE-2016-2568

7.8 HIGH

Published: February 13, 2017 Modified: May 13, 2026

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/02/26/3

Source: cve@mitre.org

Mailing List Third Party Advisory

https://access.redhat.com/security/cve/cve-2016-2568

Source: cve@mitre.org

Third Party Advisory

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062

Source: cve@mitre.org

Mailing List Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1300746

Source: cve@mitre.org

Issue Tracking Third Party Advisory

https://ubuntu.com/security/CVE-2016-2568

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/02/26/3