Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2016-2568

Published: 13 February 2017

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.

Notes

AuthorNote
mdeslaur
no fix available as of 2021-05-26
rodrigo-zaiden
no fix available as of 2022-02-21.
leosilva
no fix available as of 2023-07-21.

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
policykit-1
Launchpad, Ubuntu, Debian
jammy Deferred

kinetic Ignored
(end of life, was deferred)
xenial Deferred

groovy Ignored
(end of life)
precise Ignored
(end of life)
artful Ignored
(end of life)
bionic Deferred

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Deferred

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Deferred

upstream Needed

wily Ignored
(end of life)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
mantic Deferred

lunar Ignored
(end of life, was deferred)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H