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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0473 USN-4275-1: Qt vulnerabilities 11 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Qtbase Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-0570 CVE-2020-0569 CVE-2019-18281 CVE-2018-19872 Reference: ESB-2020.0439 ESB-2020.0420 ESB-2020.0406 ESB-2020.0398 ESB-2020.0385 ESB-2019.4054 ESB-2019.1247 Original Bulletin: https://usn.ubuntu.com/4275-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4275-1: Qt vulnerabilities 10 February 2020 qtbase-opensource-src vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary Several security issues were fixed in Qt. Software Description o qtbase-opensource-src - Qt 5 libraries Details It was discovered that Qt incorrectly handled certain PPM images. If a user or automated system were tricked into opening a specially crafted PPM file, a remote attacker could cause Qt to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-19872) It was discovered that Qt incorrectly handled certain text files. If a user or automated system were tricked into opening a specially crafted text file, a remote attacker could cause Qt to crash, resulting in a denial of service. This issue only affected Ubuntu 19.10. (CVE-2019-18281) It was discovered that Qt incorrectly searched for plugins in the current working directory. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-0569) It was discovered that Qt incorrectly searched for libraries relative to the current working directory. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 19.10. (CVE-2020-0570) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10 libqt5core5a - 5.12.4+dfsg-4ubuntu1.1 libqt5gui5 - 5.12.4+dfsg-4ubuntu1.1 Ubuntu 18.04 LTS libqt5core5a - 5.9.5+dfsg-0ubuntu2.5 libqt5gui5 - 5.9.5+dfsg-0ubuntu2.5 Ubuntu 16.04 LTS libqt5core5a - 5.5.1+dfsg-16ubuntu7.7 libqt5gui5 - 5.5.1+dfsg-16ubuntu7.7 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . After a standard system update you need to restart your session to make all the necessary changes. References o CVE-2018-19872 o CVE-2019-18281 o CVE-2020-0569 o CVE-2020-0570 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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