Update Google Chrome to Patch New Zero-Day Exploit Detected in the Wild

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Google has rolled out fixes for five security vulnerabilities in its Chrome web browser, including one which it says is being exploited in the wild, making it the 17th such weakness to be disclosed since the start of the year.

Tracked as CVE-2021-4102, the flaw relates to a use-after-free bug in the V8 JavaScript and WebAssembly engine, which could have severe consequences ranging from corruption of valid data to the execution of arbitrary code. An anonymous researcher has been credited with discovering and reporting the flaw.

As it stands, it’s not known how the weakness is being abused in real-world attacks, but the internet giant issued a terse statement that said, “it’s aware of reports that an exploit for CVE-2021-4102 exists in the wild.” This is done so in an attempt to ensure that a majority of users are updated with a fix and prevent further exploitation by other threat actors.

Automatic GitHub Backups

CVE-2021-4102 is the second use-after-free vulnerability in V8 the company has remediated in less than three months following reports of active exploitation, with the previous vulnerability CVE-2021-37975, also reported by an anonymous researcher, plugged in an update it shipped on September 30. It’s not immediately clear if the two flaws bear any relation to one another.

With this latest update, Google has addressed a record 17 zero-days in Chrome this year alone —

Prevent Data Breaches

Chrome users are recommended to update to the latest version (96.0.4664.110) for Windows, Mac, and Linux by heading to Settings > Help > ‘About Google Chrome’ to mitigate any potential risk of active exploitation.

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