Medium: ruby21

Issue Overview:

The upstream patch for CVE-2014-8080 introduced checks against the REXML.entity_expansion_text_limit, but did not add restrictions to limit the number of expansions performed, i.e. checks against the REXML::Document.entity_expansion_limit. As a consequence, even with the patch applied, a small XML document could cause REXML to use an excessive amount of CPU time. High memory usage can be achieved using larger inputs.

Affected Packages:

ruby21

Issue Correction:
Run yum update ruby21 to update your system.

New Packages:

i686:  
    rubygem21-psych-2.0.5-1.15.amzn1.i686  
    ruby21-2.1.5-1.15.amzn1.i686  
    ruby21-devel-2.1.5-1.15.amzn1.i686  
    rubygem21-bigdecimal-1.2.4-1.15.amzn1.i686  
    rubygem21-io-console-0.4.2-1.15.amzn1.i686  
    ruby21-debuginfo-2.1.5-1.15.amzn1.i686  
    ruby21-libs-2.1.5-1.15.amzn1.i686  
  
noarch:  
    ruby21-irb-2.1.5-1.15.amzn1.noarch  
    rubygems21-devel-2.2.2-1.15.amzn1.noarch  
    ruby21-doc-2.1.5-1.15.amzn1.noarch  
    rubygems21-2.2.2-1.15.amzn1.noarch  
  
src:  
    ruby21-2.1.5-1.15.amzn1.src  
  
x86_64:  
    rubygem21-bigdecimal-1.2.4-1.15.amzn1.x86_64  
    rubygem21-psych-2.0.5-1.15.amzn1.x86_64  
    rubygem21-io-console-0.4.2-1.15.amzn1.x86_64  
    ruby21-debuginfo-2.1.5-1.15.amzn1.x86_64  
    ruby21-2.1.5-1.15.amzn1.x86_64  
    ruby21-devel-2.1.5-1.15.amzn1.x86_64  
    ruby21-libs-2.1.5-1.15.amzn1.x86_64  

Additional References

Red Hat: CVE-2014-8090

Mitre: CVE-2014-8090