VDB
DEBIAN-CVE-2020-27837
DEBIAN-CVE-2020-27837
PUBLISHED
CVSS 6.400000095367432 MEDIUM
Record from OSV · Published December 28, 2020
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, accessing their session without authentication. This is similar to CVE-2017-12164, but requires more difficult conditions to exploit.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| gdm3 | Debian:14 | 3.38.2.1-1 |
| gdm3 | Debian:12 | 3.38.2.1-1 |
| gdm3 | Debian:13 | 3.38.2.1-1 |
Risk scores
CVSS 3.1
6.400000095367432
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | gdm3 | 0 |
| Debian:12 | gdm3 | 0 |
| Debian:13 | gdm3 | 0 |
Timeline
- Dec 28, 2020 CVE Published
- Oct 26, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
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vulnetix vdb fixes DEBIAN-CVE-2020-27837Or with curl, using the org id and key from your account page:
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