Qt is a software toolkit for developing applications. Security Fix: qt: buffer over-read via a crafted reply from a DNS server qt: allows remote attacker to bypass security restrictions caused by flaw in certificate validation qtbase: buffer overflow in QXmlStreamReader qtbase: infinite loops in QXmlStreamReader qt: Uninitialized variable usage in m_unitsPerEm 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 9.3 Release Notes linked from the References section.