What is CVE-2016-2781?

CVE-2016-2781 is a medium-severity vulnerability in Gnu Coreutils, classified under Improper Input Validation. CVSS score: 4.6/10. Published 2017-02-07.

How severe is CVE-2016-2781?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Is CVE-2016-2781 known to be exploited?

55 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Gnu Coreutils

CVE-2016-2781

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Gnu Coreutils
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
cve@mitre.org (mailing-list, x_refsource_MLIST)

Frequently asked questions

What is CVE-2016-2781?: CVE-2016-2781 is a medium-severity vulnerability in Gnu Coreutils, classified under Improper Input Validation. CVSS score: 4.6/10. Published 2017-02-07.
How severe is CVE-2016-2781?: Medium severity. CVSS v3 base score is 4.6 out of 10.
Is CVE-2016-2781 known to be exploited?: 55 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.