Important: unbound

Issue Overview:

An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound. (CVE-2020-10772)

Affected Packages:

unbound

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 unbound to update your system.

New Packages:

aarch64:  
    unbound-1.6.6-5.amzn2.aarch64  
    unbound-devel-1.6.6-5.amzn2.aarch64  
    unbound-libs-1.6.6-5.amzn2.aarch64  
    unbound-python-1.6.6-5.amzn2.aarch64  
    unbound-debuginfo-1.6.6-5.amzn2.aarch64  
  
i686:  
    unbound-1.6.6-5.amzn2.i686  
    unbound-devel-1.6.6-5.amzn2.i686  
    unbound-libs-1.6.6-5.amzn2.i686  
    unbound-python-1.6.6-5.amzn2.i686  
    unbound-debuginfo-1.6.6-5.amzn2.i686  
  
src:  
    unbound-1.6.6-5.amzn2.src  
  
x86_64:  
    unbound-1.6.6-5.amzn2.x86_64  
    unbound-devel-1.6.6-5.amzn2.x86_64  
    unbound-libs-1.6.6-5.amzn2.x86_64  
    unbound-python-1.6.6-5.amzn2.x86_64  
    unbound-debuginfo-1.6.6-5.amzn2.x86_64  

Additional References

Red Hat: CVE-2020-10772

Mitre: CVE-2020-10772