PT-2020-16807 · Gnome+1 · Gdm+1

Guilherme De Almeida Suckevicz · Published 2020-12-15 · Updated 2024-06-15 · CVE-2020-27837

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions GDM versions prior to 3.38.2.1

Description A flaw in GDM allows bypassing the lock screen for a user with autologin enabled, accessing their session without authentication due to a race condition in session shutdown handling.

Recommendations For versions prior to 3.38.2.1, update to version 3.38.2.1 or later to resolve the issue.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2020-3514

CVE-2020-27837

OESA-2022-1811

OESA-2022-1812

OPENSUSE-SU-2024:11547-1

Affected Products

Alt Linux

Gdm

References · 17

• https://ubuntu.com/security/CVE-2020-27837 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-27837 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-27837 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1812 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1906812 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-27837 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:11547-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-27837 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-27837 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-27837 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1811 · Vendor Advisory
• https://suse.com/security/cve/CVE-2020-27837 · Note
• https://t.me/cvenotify/7830 · Telegram Post
• https://suse.com/security/cve/CVE-2020-16125 · Note
• https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1812 · Note