Auth bypass in Gnome Display Manager
CVE-2019-3825
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.
Vulnerability class: Broken Authentication
EPSS: 0.005 (40.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.0/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Gnome Gnome_display_manager
- The Gnome Projectr Gdm — versions 3.31.4
- Canonical Ubuntu_linux — versions 18.04, 18.10
- Redhat Enterprise_linux — versions 7.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Third Party Advisory, Mitigation, Issue Tracking)
Frequently asked questions
- What is CVE-2019-3825?
- CVE-2019-3825 is a medium-severity vulnerability in Gnome Display Manager, classified under Improper Authentication. CVSS score: 6.3/10. Published 2019-02-06.
- How severe is CVE-2019-3825?
- Medium severity. CVSS v3 base score is 6.3 out of 10.