The security issue, CVE-2023-4863, is the fourth 0-day vulnerability that Google patched in Google Chrome in 2023. It is possible that the issue could be exploited by merely opening a website with specially crafted WebP images in Chrome is enough, but that is speculation at this point. While Google offers no additional details on the vulnerability, it does warn users that the issue is exploited in the wild already. WebP is a common image format on the Internet. Google notes further that WebP images are on average 26% smaller in size compared to PNG images, and between 25% and 34% smaller than JPEG images. WebP is an image format that "provides superior lossless and lossy compression for images on the web" according to Google. The issue, a heap buffer overflow vulnerability in WebP, was reported to Google by Apple Security Engineering and Architecture (SEAR) and The Citizen Lab at The University of Toronto?s Munk School on September 6, 2023. Google provides information on the critical security issue in Chrome on its official Chrome Releases blog. Google has not yet released the security update for Android Stable, only for Android Early Stable. Chrome Extended Stable for Windows: 1.188.Chrome on Windows devices: 1.187 or 1.188.The page displays the installed version as well, which should be the following after the installation of the update: This is done easily on desktop systems: just load chrome://settings/help in the browser's address bar and wait for Chrome to find and download the security update. Chrome users are encouraged to update the stable version of the web browser to the new version immediately to protect the browser against potential attacks.
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