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CVE-2016-2781

Published: 7 February 2017

chroot in GNU coreutils, when used with --userspec, 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
as of 2017-08-01, no viable solution
ccdm94
as of 2022-02-01, no viable solution

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
coreutils
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Deferred
(2022-02-01)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Deferred
(2022-02-01)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Deferred
(2022-02-01)
kinetic Ignored
(end of life, was deferred [2022-02-01])
lunar Ignored
(end of life, was deferred [2022-02-01])
mantic Deferred
(2022-02-01)
precise Ignored
(end of life)
trusty Deferred
(2022-02-01)
upstream Needed

wily Ignored
(end of life)
xenial Deferred
(2022-02-01)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N