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RedHat: RHSA-2020-4690-01 Moderate: Denial of Service in qt5 packages

red hat
Calendar Grey November 4, 2020
Dist Redhat Esm H88
Recent updates for qt5-qtbase and qt5-qtwebsockets have been launched to fix multiple moderate-security vulnerabilities, tackling potential DoS attacks and XML processing issues
An update for qt5-qtbase, qt5-qttools, and qt5-qtwebsockets is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Denial of Service XML vulnerability qt5-qtbase qt5-qtwebsockets

References

https://access.redhat.com/security/cve/CVE-2015-9541 https://access.redhat.com/security/cve/CVE-2018-21035 https://access.redhat.com/security/cve/CVE-2020-0569 https://access.redhat.com/security/cve/CVE-2020-0570 https://access.redhat.com/security/cve/CVE-2020-13962 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: qt5-qtbase-5.12.5-6.el8.src.rpm qt5-qttools-5.12.5-2.el8.src.rpm qt5-qtwebsockets-5.12.5-2.el8.src.rpm
aarch64: qt5-assistant-5.12.5-2.el8.aarch64.rpm qt5-assistant-debuginfo-5.12.5-2.el8.aarch64.rpm qt5-designer-5.12.5-2.el8.aarch64.rpm qt5-designer-debuginfo-5.12.5-2.el8.aarch64.rpm qt5-doctools-5.12.5-2.el8.aarch64.rpm qt5-doctools-debuginfo-5.12.5-2.el8.aarch64.rpm qt5-linguist-5.12.5-2.el8.aarch64.rpm qt5-linguist-debuginfo-5.12.5-2.el8.aarch64.rpm qt5-qdbusviewer-5.12.5-2.el8.aarch64.rpm qt5-qdbusviewer-debuginfo-5.12.5-2.el8.aarch64.rpm qt5-qtbase-5.12.5-6.el8.aarch64.rpm qt5-qtbase-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-debugsource-5.12.5-6.el8.aarch64.rpm qt5-qtbase-devel-5.12.5-6.el8.aarch64.rpm qt5-qtbase-devel-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-examples-5.12.5-6.el8.aarch64.rpm qt5-qtbase-examples-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-gui-5.12.5-6.el8.aarch64.rpm qt5-qtbase-gui-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-mysql-5.12.5-6.el8.aarch64.rpm qt5-qtbase-mysql-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-odbc-5.12.5-6.el8.aarch64.rpm qt5-qtbase-odbc-debuginfo-5.12.5-6.el8.aarch64.rpm qt5-qtbase-postgresql-5.12.5-6.el8.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:4690-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4690
Issue date: 2020-11-03

Topic

An update for qt5-qtbase, qt5-qttools, and qt5-qtwebsockets is nowavailable for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Denial of Service XML vulnerability qt5-qtbase qt5-qtwebsockets

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1800600 - CVE-2020-0569 qt: files placed by attacker can influence the working directory and lead to malicious code execution

1800604 - CVE-2020-0570 qt: files placed by attacker can influence the working directory and lead to malicious code execution

1801369 - CVE-2015-9541 qt: XML entity expansion vulnerability

1810964 - CVE-2018-21035 qt5-qtwebsockets: websocket implementation allows only limited size for frames and messages therefore attacker can cause DOS

1832857 - Update to LLVM-10

1849734 - CVE-2020-13962 qt5: incorrectly calls SSL_shutdown() in OpenSSL mid-handshake causing denial of service in TLS applications

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