Updated libxml2 packages fix security vulnerabilities:
xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak (CVE-2019-20388).
xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation (CVE-2020-7595).