New Google Chrome Zero-day Exploited to Crash Browser

To address the first zero-day vulnerability exploited in assaults since the year’s beginning, Google has published an urgent Chrome security upgrade.

Users on the Stable Desktop channel are receiving the updated version, which will gradually become available to all users in the coming days or weeks.

Users of Chrome should update as soon as possible to version 112.0.5615.121 since it fixes the CVE-2023-2033 vulnerability on Windows, Mac, and Linux platforms.

Google patched two vulnerabilities in this update, but the specifics won’t be made public until most users have installed the patch.

A Type Confusion in V8 vulnerability with a high severity rating is CVE-2023-2033. Clément Lecigne of Google’s Threat Analysis Group discovered the vulnerability on 2023-04-11; Clement also discovered a similar weakness (CVE-2022-4262) last year, and the patch was released in December.

“Google is aware that an exploit for CVE-2023-2033 exists in the wild,” Google said in a security advisory published on Friday.

Details of the Chrome Zero-Day Bug (CVE-2023-2033)

All Chrome versions are vulnerable to a high-severity type Confusion vulnerability in the V8 Javascript engine, which lets attackers remotely exploit the flaw by executing arbitrary code.

When this zero-day issue is successfully exploited, it causes browser crashes by reading or writing memory outside of buffer bounds.

While Google stated that it is aware of CVE-2023-2033 zero-day exploits being utilized in attacks, the company has yet to release any details about these occurrences.

“Access to bug details and links may be kept restricted until a majority of users are updated with a fix,” Google said.

“We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven’t yet fixed.”

Google advises users to update their Chrome web browser as soon as possible to avoid exploitation.

Google Chrome 112.0.5615.121

This update can be accessed via the Chrome menu > Help > About Google Chrome. After a restart, the web browser will automatically check for new updates and install them without user intervention.

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