Amazon Linux AMI : ruby21 (ALAS-2014-449)
Medium Nessus Plugin ID 79298
SynopsisThe remote Amazon Linux AMI host is missing a security update.
DescriptionThe 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.
SolutionRun 'yum update ruby21' to update your system.