DEBIAN-CVE-2020-27837

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2020-27837
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27837.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-27837
Upstream
Published
2020-12-28T19:15:13Z
Modified
2025-09-17T21:02:14Z
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / gdm3

Package

Name
gdm3
Purl
pkg:deb/debian/gdm3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.38.2.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / gdm3

Package

Name
gdm3
Purl
pkg:deb/debian/gdm3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.38.2.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / gdm3

Package

Name
gdm3
Purl
pkg:deb/debian/gdm3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.38.2.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / gdm3

Package

Name
gdm3
Purl
pkg:deb/debian/gdm3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.38.2.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}