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ALSA-2020:4690 — Moderate: qt5-qtbase and qt5-qtwebsockets security and bug fix update

Affected: AlmaLinux:8: qt5-qtbase-static, AlmaLinux:8: qt5-qttools-static

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 AlmaLinux Release Notes linked from the References section.

cnvd-2020-36615

EUVD-2026-42173

fkie_cve-2020-13962

Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mumble 1.3.0 and other products, mishandles OpenSSL's error queue, which can cause a denial of service to QSslSocket users. Because errors leak in unrelated TLS sessions, an unrelated session may be disconnected when any handshake fails. (Mumble 1.3.1 is not affected, regardless of the Qt version.)

GHSA-c4xh-w73g-qgf6

gsd-2020-13962

msrc_CVE-2020-13962 — Qt 5.12.2 through 5.14.2 as used in unofficial builds of Mumble 1.3.0 and other products mishandles OpenSSL's error que…

msrc_CVE-2020-13962

openSUSE-SU-2020:1319-1 — Security update for libqt5-qtbase

Security update for libqt5-qtbase

SUSE-SU-2020:2357-1 — Security update for libqt5-qtbase

Security update for libqt5-qtbase

UBUNTU-CVE-2020-13962

Affected: Ubuntu:Pro:20.04:LTS: qtbase-opensource-src