CVE-2018-20781

medium

Published — · Modified —

CVSS v3

—

CVSS v2

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VIR risk

5.5

Description

In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-20781

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-20781.html

OS impact

OS	Version	Status	Fixed in
arch		fixed	`3.27.2-1`
sles		affected
debian	bookworm	fixed	`3.28.0-1`
debian	bullseye	fixed	`3.28.0-1`
debian	forky	fixed	`3.28.0-1`
debian	sid	fixed	`3.28.0-1`
debian	trixie	fixed	`3.28.0-1`

References

https://www.suse.com/security/cve/CVE-2018-20781.html
https://security-tracker.debian.org/tracker/CVE-2018-20781

Verify integrity in audit chain (admin only). AS-IS.