Important: xorg-x11-server

Issue Overview:

A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due to improper validation of the request length. (CVE-2022-2319)

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root. (CVE-2022-2320)

Affected Packages:

xorg-x11-server

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update xorg-x11-server to update your system.

New Packages:

aarch64:  
    xorg-x11-server-common-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xorg-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xnest-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xdmx-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xvfb-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xephyr-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-Xwayland-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-devel-1.20.4-18.amzn2.0.1.aarch64  
    xorg-x11-server-debuginfo-1.20.4-18.amzn2.0.1.aarch64  
  
i686:  
    xorg-x11-server-common-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xorg-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xnest-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xdmx-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xvfb-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xephyr-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-Xwayland-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-devel-1.20.4-18.amzn2.0.1.i686  
    xorg-x11-server-debuginfo-1.20.4-18.amzn2.0.1.i686  
  
noarch:  
    xorg-x11-server-source-1.20.4-18.amzn2.0.1.noarch  
  
src:  
    xorg-x11-server-1.20.4-18.amzn2.0.1.src  
  
x86_64:  
    xorg-x11-server-common-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xorg-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xnest-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xdmx-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xvfb-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xephyr-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-Xwayland-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-devel-1.20.4-18.amzn2.0.1.x86_64  
    xorg-x11-server-debuginfo-1.20.4-18.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2022-2319, CVE-2022-2320

Mitre: CVE-2022-2319, CVE-2022-2320