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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2564 USN-5024-1: WebKitGTK vulnerabilities 29 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebKitGTK Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Cross-site Scripting -- Remote/Unauthenticated Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-30799 CVE-2021-30797 CVE-2021-30795 CVE-2021-30758 CVE-2021-30749 CVE-2021-30744 CVE-2021-30734 CVE-2021-30720 CVE-2021-30689 CVE-2021-30665 CVE-2021-30663 CVE-2021-21779 CVE-2021-21775 Reference: ESB-2021.2492 ESB-2021.2491 Original Bulletin: https://ubuntu.com/security/notices/USN-5024-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5024-1: WebKitGTK vulnerabilities 28 July 2021 Several security issues were fixed in WebKitGTK. Releases o Ubuntu 21.04 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 21.04 o libwebkit2gtk-4.0-37 - 2.32.3-0ubuntu0.21.04.1 o libjavascriptcoregtk-4.0-18 - 2.32.3-0ubuntu0.21.04.1 Ubuntu 20.04 o libwebkit2gtk-4.0-37 - 2.32.3-0ubuntu0.20.04.1 o libjavascriptcoregtk-4.0-18 - 2.32.3-0ubuntu0.20.04.1 Ubuntu 18.04 o libwebkit2gtk-4.0-37 - 2.32.3-0ubuntu0.18.04.1 o libjavascriptcoregtk-4.0-18 - 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 o CVE-2021-30797 o CVE-2021-30744 o CVE-2021-30799 o CVE-2021-21775 o CVE-2021-30749 o CVE-2021-30758 o CVE-2021-30795 o CVE-2021-30689 o CVE-2021-21779 o CVE-2021-30665 o CVE-2021-30720 o CVE-2021-30663 o CVE-2021-30734 - --------------------------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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYQH83ONLKJtyKPYoAQgiCg//SnZq2zM3kmPlBeu0GrM/URk/8XRIXRlP C2aN5Rm7XsYUzNCD58eO68D1lvwt3/rsCqYUotXouno/5iQBQdw3XgkF7DAcsOJT 7mjOrEcXWI3dwC+3ieuRyomUbbi5IwOQeIAjADXYoSPee66AEXG8s/c2yzxdpwvx okSu4VEEUAk3Mq/T6kMYhp+duHh4pkUyaxrpyiSLR5uERtgTxqXmSzn7lsSVp0Hu gPm2ji5XNdFU0Sjo0IXxM+q/moFptHq8M9U6sG/hl6NNRY8u3rKqC4K+uonEjudG fN1KANeBzKVYQU0+B+8+O9v22jAXX7d6FsKSVzA1XOeNSO5LOexIFrsZ6+H8HWsx Uu6t3P+pOLwDNvFkiTG+H9qPNzBCs+7md9OVYBv+w1I9hlsv/KsmfexorTRnS3L2 UwPi32Mwx+26x3+LyaDWcXTDTfaHetixRGjQ+VM7LYw8AcLevkVvUkGSp3TfW2tv jfHWKDKmWO+NKeTOvVJCiNDUKdSrHATpXHTwG7tvcgEle7N2W4uEIYtLVjqO5vQK J3n+eD58fWiDakC4sUHrz+W9V6036LqqbZAXarxx8NOiUfNv0rUA9tyZ/+o/lpHB EcmMfg//yvAVCK87jR3A6lCxYlv5XacNRtH8uuhPBXGmIix0jQDOWq/fuAnQBi6J rb8F/eCl0Ow= =AFMT -----END PGP SIGNATURE-----