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Red Hat: CVE-2018-1113: Low: setup security and bug fix update (RHSA-2018:3249)

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Red Hat: CVE-2018-1113: Low: setup security and bug fix update (RHSA-2018:3249)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
07/02/2018
Created
03/19/2019
Added
10/31/2018
Modified
03/03/2021

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.

Solution(s)

  • redhat-upgrade-setup

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