CVE-2018-1113

Name: CVE-2018-1113
Creator: NVD / NIST
Published: 2018-07-03T01:29:00.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.32%

Last modified Jun 17, 2026

CVE-2018-1113 is a vulnerability of currently unknown severity. setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. Under some circumstances, users which had their shell changed to /sbin/nologin could still access the system.

Metrics

EPSS Probability

0.32%

23.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Setup	< 2.11.4
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0

References

https://access.redhat.com/errata/RHBA-2019:0327Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3249Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113Issue Tracking, Vendor Advisory
https://access.redhat.com/errata/RHBA-2019:0327Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3249Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113Issue Tracking, Vendor Advisory

Timeline

Published: Jul 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1113?

How severe is CVE-2018-1113?

Severity scoring for CVE-2018-1113 is pending analysis. The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1113?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1113?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST