Medium: libX11

Issue Overview:

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition. (CVE-2023-43786)

Affected Packages:

libX11

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 libX11 to update your system.

New Packages:

aarch64:  
    libX11-1.6.7-3.amzn2.0.5.aarch64  
    libX11-devel-1.6.7-3.amzn2.0.5.aarch64  
    libX11-debuginfo-1.6.7-3.amzn2.0.5.aarch64  
  
i686:  
    libX11-1.6.7-3.amzn2.0.5.i686  
    libX11-devel-1.6.7-3.amzn2.0.5.i686  
    libX11-debuginfo-1.6.7-3.amzn2.0.5.i686  
  
noarch:  
    libX11-common-1.6.7-3.amzn2.0.5.noarch  
  
src:  
    libX11-1.6.7-3.amzn2.0.5.src  
  
x86_64:  
    libX11-1.6.7-3.amzn2.0.5.x86_64  
    libX11-devel-1.6.7-3.amzn2.0.5.x86_64  
    libX11-debuginfo-1.6.7-3.amzn2.0.5.x86_64  

Additional References

Red Hat: CVE-2023-43786

Mitre: CVE-2023-43786