CVE-2019-3825

Publication date 6 February 2019

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.3 · Medium

Score breakdown

Description

A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to expire, at which time they would gain access to the logged-in user's session.

Status

Package Ubuntu Release Status
gdm3 25.10 questing
Fixed 3.31.4+git20190225-1ubuntu1
25.04 plucky
Fixed 3.31.4+git20190225-1ubuntu1
24.10 oracular
Fixed 3.31.4+git20190225-1ubuntu1
24.04 LTS noble
Fixed 3.31.4+git20190225-1ubuntu1
23.10 mantic
Fixed 3.31.4+git20190225-1ubuntu1
23.04 lunar
Fixed 3.31.4+git20190225-1ubuntu1
22.10 kinetic
Fixed 3.31.4+git20190225-1ubuntu1
22.04 LTS jammy
Fixed 3.31.4+git20190225-1ubuntu1
21.10 impish
Fixed 3.31.4+git20190225-1ubuntu1
21.04 hirsute
Fixed 3.31.4+git20190225-1ubuntu1
20.10 groovy
Fixed 3.31.4+git20190225-1ubuntu1
20.04 LTS focal
Fixed 3.31.4+git20190225-1ubuntu1
19.10 eoan
Fixed 3.31.4+git20190225-1ubuntu1
19.04 disco
Fixed 3.31.4+git20190225-1ubuntu1
18.10 cosmic
Fixed 3.30.1-1ubuntu5.1
18.04 LTS bionic
Fixed 3.28.3-0ubuntu18.04.4
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Not in release

Patch details

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

Package Patch details
gdm3

Severity score breakdown

Parameter Value
Base score 6.3 · Medium
Attack vector Physical
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references