vulnerability

CentOS Linux: CVE-2019-3842: Moderate: systemd security, bug fix, and enhancement update (CESA-2021:1611)

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Apr 9, 2019
Added
Jun 1, 2021
Modified
Jan 28, 2025

Description

In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the "allow_active" element rather than "allow_any".

Solution(s)

centos-upgrade-systemdcentos-upgrade-systemd-containercentos-upgrade-systemd-container-debuginfocentos-upgrade-systemd-debuginfocentos-upgrade-systemd-debugsourcecentos-upgrade-systemd-develcentos-upgrade-systemd-journal-remotecentos-upgrade-systemd-journal-remote-debuginfocentos-upgrade-systemd-libscentos-upgrade-systemd-libs-debuginfocentos-upgrade-systemd-pamcentos-upgrade-systemd-pam-debuginfocentos-upgrade-systemd-testscentos-upgrade-systemd-tests-debuginfocentos-upgrade-systemd-udevcentos-upgrade-systemd-udev-debuginfo
Title
NEW

Explore Exposure Command

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