CVE-2019-3842
High
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".
SeverityHigh
CVSS7.0
Exploit probability—
Product
Systemd
PublishedApr 9, 2019
First seenApr 9, 2019
Weakness typeCWE-285CWE-285
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| systemd_project systemd | v ≤ 241, 242 | — |
| redhat enterprise_linux | 7.0 | — |
| fedoraproject fedora | 30 | — |
| debian debian_linux | 8.0 | — |
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