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libxml2 was updated to fix security issues and a regression from the last version update. Security issues fixed : - CVE-2016-3627: Fixed stack exhaustion while parsing certain XML files in recovery mode (bnc#972335). - CVE-2016-3705: Improved protection against the Billion Laughs Attack (bnc#975947). Regression fixed : - Fixed XML push parser that fails with bogus UTF-8 encoding error when multi-byte character in large CDATA section is split across buffer [bnc#962796]