-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2652 USN-4444-1: WebKitGTK vulnerabilities 4 August 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebKitGTK Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-9925 CVE-2020-9915 CVE-2020-9895 CVE-2020-9894 CVE-2020-9893 CVE-2020-9862 Reference: ESB-2020.2434 Original Bulletin: https://usn.ubuntu.com/4444-1/ https://webkitgtk.org/security/WSA-2020-0007.html - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4444-1: WebKitGTK vulnerabilities 03 August 2020 Several security issues were fixed in WebKitGTK. Releases o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o webkit2gtk - Web content engine library for GTK+ Details A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o libjavascriptcoregtk-4.0-18 - 2.28.4-0ubuntu0.20.04.1 o libwebkit2gtk-4.0-37 - 2.28.4-0ubuntu0.20.04.1 Ubuntu 18.04 o libjavascriptcoregtk-4.0-18 - 2.28.4-0ubuntu0.18.04.1 o libwebkit2gtk-4.0-37 - 2.28.4-0ubuntu0.18.04.1 This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart any applications that use WebKitGTK, such as Epiphany, to make all the necessary changes. References o CVE-2020-9862 o CVE-2020-9893 o CVE-2020-9894 o CVE-2020-9895 o CVE-2020-9915 o CVE-2020-9925 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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