CVE-2016-2568
HIGHpolkit - Local Privilege Escalation via TIOCSTI ioctl Call
Title source: llmDescription
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.
References (5)
Core 5
Core References
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/02/26/3
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1300746
Third Party Advisory x_refsource_misc
https://access.redhat.com/security/cve/cve-2016-2568
Third Party Advisory x_refsource_misc
https://ubuntu.com/security/CVE-2016-2568
Mailing List, Third Party Advisory x_refsource_misc
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062
Scores
CVSS v3
7.8
EPSS
0.0035
EPSS Percentile
26.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-116
Status
published
Products (3)
freedesktop/polkit
redhat/enterprise_linux
6.0
redhat/enterprise_linux
7.0
Published
Feb 13, 2017
Tracked Since
Feb 18, 2026