RHSA-2020:4690: qt5-qtbase and qt5-qtwebsockets security and bug fix update (Moderate)
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(es): * qt: XML entity expansion vulnerability (CVE-2015-9541) * qt5-qtwebsockets: websocket implementation allows only limited size for frames and messages therefore attacker can cause DOS (CVE-2018-21035) * qt: files placed by attacker can influence the working directory and lead to malicious code execution (CVE-2020-0569) * qt: files placed by attacker can influence the working directory and lead to malicious code execution (CVE-2020-0570) * qt5: incorrectly calls SSL_shutdown() in OpenSSL mid-handshake causing denial of service in TLS applications (CVE-2020-13962) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.