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             AUSCERT External Security Bulletin Redistribution             
                                                                           
                               ESB-2024.2065                               
                USN-6721-1: X.Org X Server vulnerabilities                 
                               5 April 2024                                
                                                                           
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        AusCERT Security Bulletin Summary
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Product:           X.Org X Server                                          
Publisher:         Ubuntu                                                  
Operating System:  Ubuntu                                                  
Resolution:        Patch/Upgrade                                           
CVE Names:         CVE-2024-31080 CVE-2024-31081 CVE-2024-31082            
                   CVE-2024-31083                                          

Original Bulletin:
   https://ubuntu.com/security/notices/USN-6721-1

Comment: CVSS (Max):  7.8 CVE-2024-31083 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: Red Hat                                              
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H


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USN-6721-1: X.Org X Server vulnerabilities

4 April 2024

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

Releases

  o Ubuntu 23.10
  o Ubuntu 22.04 LTS
  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 ESM
  o Ubuntu 16.04 ESM
  o Ubuntu 14.04 ESM

Packages

  o xorg-server - X.Org X11 server
  o xwayland - X server for running X clients under Wayland

Details

It was discovered that X.Org X Server incorrectly handled certain data.
An attacker could possibly use this issue to expose sensitive information.
( CVE-2024-31080 , CVE-2024-31081 , CVE-2024-31082 )

It was discovered that X.Org X Server incorrectly handled certain glyphs.
An attacker could possibly use this issue to cause a crash or expose sensitive
information. ( CVE-2024-31083 )

Update instructions

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

Ubuntu 23.10

  o xserver-xorg-core - 2:21.1.7-3ubuntu2.8
  o xwayland - 2:23.2.0-1ubuntu0.5

Ubuntu 22.04

  o xserver-xorg-core - 2:21.1.4-2ubuntu1.7~22.04.9
  o xwayland - 2:22.1.1-1ubuntu0.12

Ubuntu 20.04

  o xserver-xorg-core - 2:1.20.13-1ubuntu1~20.04.16
  o xwayland - 2:1.20.13-1ubuntu1~20.04.16

Ubuntu 18.04

  o xserver-xorg-core - 2:1.19.6-1ubuntu4.15+esm7
    Available with Ubuntu Pro
  o xwayland - 2:1.19.6-1ubuntu4.15+esm7
    Available with Ubuntu Pro

Ubuntu 16.04

  o xserver-xorg-core - 2:1.18.4-0ubuntu0.12+esm12
    Available with Ubuntu Pro
  o xwayland - 2:1.18.4-0ubuntu0.12+esm12
    Available with Ubuntu Pro

Ubuntu 14.04

  o xserver-xorg-core - 2:1.15.1-0ubuntu2.11+esm11
    Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

  o CVE-2024-31083
  o CVE-2024-31082
  o CVE-2024-31081
  o CVE-2024-31080

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