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Sicherheit: Mangelnde Rechteprüfung in GDM
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in GDM
ID: USN-3892-1
Distribution: Ubuntu
Plattformen: Ubuntu 18.04 LTS, Ubuntu 18.10
Datum: Mi, 20. Februar 2019, 19:00
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3825
Applikationen: Gnome Display Manager

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3892-1
February 20, 2019

gdm3 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10
- Ubuntu 18.04 LTS

Summary:

GDM could give unauthorized access to a different user.

Software Description:
- gdm3: GNOME Display Manager

Details:

Burghard Britzke discovered that GDM incorrectly handled certain
configurations. An attacker could possibly use this issue to get
unauthorized access to a different user.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
gdm3 3.30.1-1ubuntu5.1

Ubuntu 18.04 LTS:
gdm3 3.28.3-0ubuntu18.04.4

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3892-1
CVE-2019-3825

Package Information:
https://launchpad.net/ubuntu/+source/gdm3/3.30.1-1ubuntu5.1
https://launchpad.net/ubuntu/+source/gdm3/3.28.3-0ubuntu18.04.4
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