Gnome Display Manager vulnerabilities

10 CVEs affecting Gnome Display Manager, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2020-27837, published 2020-12-28.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2020-16125, published 2020-11-10. Medium severity, CVSS 6.8. EPSS: 1.1% chance of exploitation in the next 30 days. gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could…
CVE-2016-1000002, published 2019-11-05. Low severity, CVSS 2.4. EPSS: 0.5% chance of exploitation in the next 30 days. gdm3 3.14.2 and possibly later has an information leak before screen lock
CVE-2018-14424, published 2018-08-14. High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days. The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially…
CVE-2010-2387, published 2012-12-21. Low severity, CVSS 1.9. EPSS: 0.5% chance of exploitation in the next 30 days. vicious-extensions/ve-misc.c in GNOME Display Manager (gdm) 2.20.x before 2.20.11, when GDM debug is enabled, logs the user password when it contains invalid UTF8 encoded characters, which might…
CVE-2019-3825, published 2019-02-06. Medium severity, CVSS 6.4. EPSS: 0.5% chance of exploitation in the next 30 days. 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…
CVE-2015-7496, published 2015-11-24. High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days. GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass the lock screen by holding the Escape key.
CVE-2017-12164, published 2018-07-26. Medium severity, CVSS 6.4. EPSS: 0.4% chance of exploitation in the next 30 days. A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as…
CVE-2013-4169, published 2013-09-10. Medium severity, CVSS 6.9. EPSS: 0.4% chance of exploitation in the next 30 days. GNOME Display Manager (gdm) before 2.21.1 allows local users to change permissions of arbitrary directories via a symlink attack on /tmp/.X11-unix/.
CVE-2013-7273, published 2014-04-29. Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days. GNOME Display Manager (gdm) 3.4.1 and earlier, when disable-user-list is set to true, allows local users to cause a denial of service (unable to login) by pressing the cancel button after entering a…
CVE-2020-27837, published 2020-12-28. Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days. A flaw was found in GDM in versions prior to 3.38.2.1. A race condition in the handling of session shutdown makes it possible to bypass the lock screen for a user that has autologin enabled,…