Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt. Security Fix: * qt5-qtbase: Double free in QXmlStreamReader * qt5-qtbase: QImage allocation failure in qgifhandler * qt5-qtbase: QBmpHandler segmentation fault on malformed BMP file For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.