CVE-2019-3842
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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".
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-3842
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:1611
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-3842.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 241-3 |
| debian | bullseye | fixed | 241-3 |
| debian | forky | fixed | 241-3 |
| debian | sid | fixed | 241-3 |
| debian | trixie | fixed | 241-3 |
References
Verify integrity in audit chain (admin only). AS-IS.