CVE-2016-2781

coreutils: Non-privileged session can escape to the parent session in chroot

Published Feb 7, 2017 CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2016-3855 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.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00084}

epss

{'score': 0.00065}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 9, 2025, 3:59 PM
Reserved
Feb 28, 2016, 12:00 AM
Status
Modified
Published
Feb 7, 2017, 3:59 PM
Modified
Jun 17, 2026, 12:44 AM
Severity
Moderate
Public date
Feb 28, 2016, 12:00 AM