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Sicherheit: Mehrere Probleme in X.Org (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in X.Org (Aktualisierung)
ID: USN-5193-2
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 ESM, Ubuntu 16.04 ESM
Datum: Mi, 26. Januar 2022, 18:14
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4011
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4009
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4008
Applikationen: X11
Update von: Mehrere Probleme in X.Org

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-5193-2
January 26, 2022

xorg-server vulnerabilities
==========================================================================

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in X.Org X Server.

Software Description:
- xorg-server: X.Org X11 server

Details:

USN-5193-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain inputs. An attacker could use this issue to cause the server to
crash, resulting in a denial of service, or possibly execute arbitrary
code and escalate privileges.

Update instructions:

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

Ubuntu 16.04 ESM:
xserver-xorg-core 2:1.18.4-0ubuntu0.12+esm1

Ubuntu 14.04 ESM:
xserver-xorg-core 2:1.15.1-0ubuntu2.11+esm5

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

References:
https://ubuntu.com/security/notices/USN-5193-2
https://ubuntu.com/security/notices/USN-5193-1
CVE-2021-4008, CVE-2021-4009, CVE-2021-4011

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