Google has announced a crucial update to its Chrome browser, addressing several vulnerabilities, including two zero-day exploits showcased at the prestigious Pwn2Own 2024 hacking competition.
The update, which affects Chrome users on Windows, Mac, and Linux, elevates the browser version to 123.0.6312.86/.87 for Windows and Mac, and 123.0.6312.86 for Linux, with the rollout expected to reach users progressively over the coming days and weeks.
Google’s latest security update includes fixes for seven vulnerabilities, with a special emphasis on those discovered by external researchers.
The tech giant has a longstanding tradition of rewarding these contributors for identifying and reporting bugs.
This practice enhances Chrome’s security and fosters a collaborative relationship between the company and the cybersecurity community.
One of the most critical issues addressed in this update is CVE-2024-2883, a use-after-free vulnerability in ANGLE, a cross-platform graphics engine abstraction layer used by Chrome to improve graphics performance on various platforms.
This vulnerability was reported by Cassidy Kim (@cassidy6564) on March 3, 2024, and has been rewarded with a $10,000 bounty. Use-after-free vulnerabilities can lead to arbitrary code execution, making them particularly dangerous.
Another significant vulnerability patched in this release is CVE-2024-2885, a high-severity use-after-free issue in Dawn, an open-source and cross-platform implementation of the WebGPU standard.
This bug was reported by an entity known as Fuzz on March 11, 2024.
The severity of this vulnerability underscores the importance of timely updates to mitigate potential risks.
However, the spotlight shines on two high-severity vulnerabilities, CVE-2024-2886 and CVE-2024-2887, unveiled during the Pwn2Own 2024 competition.
CVE-2024-2886, reported by Seunghyun Lee (@0x10n) of KAIST Hacking Lab, is a use-after-free vulnerability in WebCodecs, a component critical for efficient media content encoding and decoding.
CVE-2024-2887, reported by Manfred Paul, involves type confusion in WebAssembly, a binary instruction format for a stack-based virtual machine that enables high-performance applications on the web.
These discoveries at Pwn2Own highlight the event’s role in identifying and mitigating potential threats before they can be exploited maliciously.
Google also acknowledges the contributions of its internal security team, whose ongoing efforts have led to various fixes identified through internal audits, fuzzing, and other initiatives.
The company’s use of tools like AddressSanitizer, MemorySanitizer, UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, and AFL is crucial in detecting and addressing security bugs.
Chrome users are urged to update their browsers immediately to protect against these vulnerabilities.
For those interested in switching release channels or reporting new issues, Google provides resources and a community help forum for assistance and learning about common issues.
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