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CentOS Linux: CVE-2018-1113: Low: setup security and bug fix update (CESA-2018:3249)

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CentOS Linux: CVE-2018-1113: Low: setup security and bug fix update (CESA-2018:3249)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
07/03/2018
Created
08/29/2019
Added
08/28/2019
Modified
05/25/2023

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)

  • centos-upgrade-setup

References

  • CVE-2018-1113
  • RHBA-2019:0327
  • RHSA-2018:3249

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