Updated libxml2 packages fix security vulnerability:
The xmlreader in libxml2 allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack (CVE-2015-1819).
The libxml2 package has been patched to fix this issue, as well as two out-of-bounds read issues (bgo#744980, bgo#746048).