Even if a Chromebook is no longer receiving automatic updates, it still comes with verified boot.To ensure compatibility with our updates, every four weeks we work with all the component manufacturers within a platform (processor, WiFi, etc.) to develop and to test the software on every single ChromeOS device. A platform is a series of components that are designed to work together - something a manufacturer selects for any given device.These improvements automatically help make your Chromebook useful even longer by providing enhanced security and stability for 10 years from the platform release date. With every update, your laptop becomes more secure.ChromeOS devices receive 10 years of updates.**.These updates depend on many device specific non-Google hardware and software providers that work with Google to provide the highest level of security and stability support. Automatic updates provide the latest features, keep the device secure, and are applied across the operating system, browser and hardware. Chromebook, Chromebox, Chromebase, Chromebit) receive automatic updates that enhance both the device and its software. It is to Google’s credit that fixes for high level attacks are consistently released within days of their discovery, but they are only effective if billions of users subsequently restart their browsers.Chrome devices (e.g. Remember: after updating, you must restart your browser to be protected. If the update is not yet available for your browser, make sure you check regularly for the new version. To check if you are protected, navigate to Settings > Help > About Google Chrome. Be warned, Google states that “this will roll out over the coming days/weeks” which means you may not be able to protect yourself immediately. In response to these new threats, Google has released a major new update for Chrome, version. V8 is an open-source JavaScript engine which is used by Google Chrome and Chromium-based web browsers like Microsoft Edge, Opera, Amazon Silk, Brave, Yandex and Vivaldi. UAF vulnerabilities are memory exploits created when a program fails to clear the pointer to the memory after it is freed.Ĭhrome V8 exploits have also been rife in 2021 along with Heap buffer overflow flaws. Successful UAF exploits topped 10x in both September and October and have been the cause of several ‘ zero-day’ hacks as well. These hacks follow a familiar pattern, with ‘Use-After-Free’ ( UAF) exploits once more making up the majority of attacks. Reported by Sergei Glazunov of Google Project Zero on High - CVE-2021-38011: Use after free in storage foundation.High - CVE-2021-38010: Inappropriate implementation in service workers.High - CVE-2021-38005: Use after free in loader.High - CVE-2021-38006: Use after free in storage foundation.High - CVE-2021-38009: Inappropriate implementation in cache.Reported by Marcin Towalski of Cisco Talos on High - CVE-2021-38008: Use after free in media.Reported by Polaris Feng and SGFvamll at Singular Security Lab on Consequently, looking at the new High level threats, we only have the following information to go on: Either way, it leaves Chrome users in a difficult position with the choice of waiting and leaving known security vulnerabilities in the browser (details below) or updating and potentially breaking their browsing experience.Īs is standard practice, Google is currently restricting information about these hacks to buy time for Chrome users to upgrade. At this stage, it is unknown if Google can apply a fix remotely without having to release a new version of Chrome. Several workarounds have been attempted and disabling a new embedding feature introduced in Chrome 96 ("chrome://flags/#cross-origin-embedder-policy-credentialless") has improved things for some users, though not all.
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