Important: unbound

Issue Overview:

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive resolver or authoritative name server.(CVE-2020-12662)

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.(CVE-2020-12663)

Affected Packages:

unbound

Issue Correction:
Run yum update unbound to update your system.

New Packages:

i686:  
    unbound-1.6.6-1.5.amzn1.i686  
    unbound-libs-1.6.6-1.5.amzn1.i686  
    unbound-debuginfo-1.6.6-1.5.amzn1.i686  
    unbound-devel-1.6.6-1.5.amzn1.i686  
    unbound-python-1.6.6-1.5.amzn1.i686  
  
src:  
    unbound-1.6.6-1.5.amzn1.src  
  
x86_64:  
    unbound-devel-1.6.6-1.5.amzn1.x86_64  
    unbound-debuginfo-1.6.6-1.5.amzn1.x86_64  
    unbound-libs-1.6.6-1.5.amzn1.x86_64  
    unbound-python-1.6.6-1.5.amzn1.x86_64  
    unbound-1.6.6-1.5.amzn1.x86_64  

Additional References

Red Hat: CVE-2020-12662, CVE-2020-12663

Mitre: CVE-2020-12662, CVE-2020-12663