RHSA-2020:1190: Moderate: libxml2 security update

The libxml2 library is a development toolbox providing the implementation of various XML standards.<br>Security Fix(es):<br><li> libxml2: Use after free triggered by XPointer paths beginning with range-to (CVE-2016-5131)</li> <li> libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c (CVE-2017-15412)</li> <li> libxml2: DoS caused by incorrect error detection during XZ decompression (CVE-2015-8035)</li> <li> libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c (CVE-2018-14404)</li> <li> libxml2: Unrestricted memory usage in xzhead() function in xzlib.c (CVE-2017-18258)</li> <li> libxml2: Infinite loop caused by incorrect error detection during LZMA decompression (CVE-2018-14567)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.