Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

Ubuntu: (CVE-2016-2781): coreutils vulnerability

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
Feb 7, 2017
Added
Jun 26, 2025
Modified
Jul 28, 2025

Description

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.

Solution

no-fix-ubuntu-package
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.