CVE-2018-20781

Publication date 12 February 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gnome-keyring	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Fixed 3.18.3-0ubuntu2.1
	14.04 LTS trusty	Fixed 3.10.1-1ubuntu4.4

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
gnome-keyring	Upstream: 9db67ef

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3894-1
GNOME Keyring vulnerability
26 February 2019