Important: c-ares

Issue Overview:

Denial of Service.

An issue in c-ares was found where a 0-byte UDP payload can cause a Denial of Service (CVE-2023-32067).

Affected Packages:

c-ares

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 c-ares to update your system.

New Packages:

aarch64:  
    c-ares-1.10.0-3.amzn2.0.3.aarch64  
    c-ares-devel-1.10.0-3.amzn2.0.3.aarch64  
    c-ares-debuginfo-1.10.0-3.amzn2.0.3.aarch64  
  
i686:  
    c-ares-1.10.0-3.amzn2.0.3.i686  
    c-ares-devel-1.10.0-3.amzn2.0.3.i686  
    c-ares-debuginfo-1.10.0-3.amzn2.0.3.i686  
  
src:  
    c-ares-1.10.0-3.amzn2.0.3.src  
  
x86_64:  
    c-ares-1.10.0-3.amzn2.0.3.x86_64  
    c-ares-devel-1.10.0-3.amzn2.0.3.x86_64  
    c-ares-debuginfo-1.10.0-3.amzn2.0.3.x86_64  

Additional References

Red Hat: CVE-2023-32067

Mitre: CVE-2023-32067