Overview
On December 5, NSFOCUS CERT found that Google officially released a type confusion vulnerability (CVE-2022-4262) in Google Chrome V8. A type confusion error occurs because a program uses one type of method to allocate or initialize a resource, such as a pointer, object, or variable, but then accesses that resource with another method that is incompatible with the original type, allowing an out-of-bounds memory access. By convincing a user to visit a specially crafted Web site, a remote attacker could ultimately achieve arbitrary code execution or cause a denial of service on the system. The CVSS score is 8.8. At present, it has been detected that it has been exploited in the wild. Relevant users are requested to take protective measures as soon as possible.
Google Chrome is a web browser developed by Google. Google Chrome V8 is Google’s open source JavaScript and WebAssembly engine.
Reference link:
https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.html
Scope of Impact
Affected version
- Google Chrome for Mac < 108.0.5359.94
- Google Chrome for Linux < 108.0.5359.94
- Google Chrome for Windows < 108.0.5359.94
Unaffected version
- Google Chrome for Mac >= 108.0.5359.94
- Google Chrome for Linux >= 108.0.5359.94
- Google Chrome for Windows >= 108.0.5359.94
Mitigation
At present, the official patch package of V10.5.8 has been released to fix this vulnerability. It is recommended that affected users install the protection in time:
https://www.google.com/chrome/
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.
NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).
A wholly owned subsidiary of NSFOCUS Technologies Group Co., Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.
