It was discovered that Ruby"s REXML library did not properly restrict XML entity expansion. An attacker could use this flaw to cause a denial of service by tricking a Ruby application using REXML to read text nodes from specially-crafted XML content, which will result in REXML consuming large amounts of system memory. It was found that the RHSA-2011-0910 update did not correctly fix the CVE-2011-1 ...