vulnerability

Amazon Linux AMI 2: CVE-2019-3842: Security patch for systemd (ALAS-2022-1854)

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Apr 9, 2019
Added
Oct 11, 2022
Modified
Jan 30, 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)

amazon-linux-ami-2-upgrade-libgudev1amazon-linux-ami-2-upgrade-libgudev1-develamazon-linux-ami-2-upgrade-systemdamazon-linux-ami-2-upgrade-systemd-debuginfoamazon-linux-ami-2-upgrade-systemd-develamazon-linux-ami-2-upgrade-systemd-journal-gatewayamazon-linux-ami-2-upgrade-systemd-libsamazon-linux-ami-2-upgrade-systemd-networkdamazon-linux-ami-2-upgrade-systemd-pythonamazon-linux-ami-2-upgrade-systemd-resolvedamazon-linux-ami-2-upgrade-systemd-sysv
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