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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --K7O50dw2l6ZKlJYdATB47lLz843OW5lXy Content-Type: multipart/mixed; boundary="sxlVCRAG8tvABweXdiUhiWgEDO6KWa9BV"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <af3c7163-5e23-253a-03c9-534de6484b57@canonical.com> Subject: [USN-5024-1] WebKitGTK vulnerabilities
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========================================================================== Ubuntu Security Notice USN-5024-1 July 28, 2021
webkit2gtk vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.04 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in WebKitGTK.
Software Description: - 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 21.04: libjavascriptcoregtk-4.0-18 2.32.3-0ubuntu0.21.04.1 libwebkit2gtk-4.0-37 2.32.3-0ubuntu0.21.04.1
Ubuntu 20.04 LTS: libjavascriptcoregtk-4.0-18 2.32.3-0ubuntu0.20.04.1 libwebkit2gtk-4.0-37 2.32.3-0ubuntu0.20.04.1
Ubuntu 18.04 LTS: libjavascriptcoregtk-4.0-18 2.32.3-0ubuntu0.18.04.1 libwebkit2gtk-4.0-37 2.32.3-0ubuntu0.18.04.1
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: https://ubuntu.com/security/notices/USN-5024-1 CVE-2021-21775, CVE-2021-21779, CVE-2021-30663, CVE-2021-30665, CVE-2021-30689, CVE-2021-30720, CVE-2021-30734, CVE-2021-30744, CVE-2021-30749, CVE-2021-30758, CVE-2021-30795, CVE-2021-30797, CVE-2021-30799
Package Information: https://launchpad.net/ubuntu/+source/webkit2gtk/2.32.3-0ubuntu0.21.04.1 https://launchpad.net/ubuntu/+source/webkit2gtk/2.32.3-0ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/webkit2gtk/2.32.3-0ubuntu0.18.04.1
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