Malware & Threats

Google Patches Two More Exploited Zero-Day Vulnerabilities in Chrome

Google on Thursday announced the rollout of a Chrome update to address four security vulnerabilities, including two that are already being exploited in the wild.

Ionut Arghire

October 1, 2021

Google on Thursday announced the rollout of a Chrome update to address four security vulnerabilities, including two that are already being exploited in the wild.

The exploited vulnerabilities include CVE-2021-37975, a high-severity use-after-free bug in the V8 engine, and CVE-2021-37976, a medium-severity information leak issue in the core. Both were reported last week.

“Google is aware the exploits for CVE-2021-37975 and CVE-2021-37976 exist in the wild,” the Internet search giant says.

Now rolling out to Windows, Mac and Linux users as Chrome version 94.0.4606.71, the new browser iteration also addresses CVE-2021-37974, a high-severity use-after-free in Safe Browsing.

Google says the report for this vulnerability earned the reporting researcher, namely Weipeng Jiang from Codesafe Team of Legendsec at Qi’anxin Group, a $20,000 bug bounty reward.

Exploitation of these vulnerabilities may lead to the execution of arbitrary code in the context of the browser, the Multi-State Information Sharing and Analysis Center (MS-ISAC) warns in an advisory. Successful exploitation may potentially lead to system compromise.

The update comes roughly one week after Google issued an emergency patch for CVE-2021-37973, a high-severity use-after-free issue in the Portals API that was already being exploited in attacks.

With CVE-2021-37975 and CVE-2021-37976, the number of documented zero-day attacks so far in 2021 has been rounded up to 70. Of these, 14 security flaws were found in Google’s Chrome and Android platforms, data reviewed by SecurityWeek shows.

Written By Ionut Arghire

Ionut Arghire is an international correspondent for SecurityWeek.

Latest News

Click to comment

Dealing With the Carcinization of Security

Varied viewpoints as related security concepts take on similar traits create substantial confusion among security teams trying to evaluate and purchase security technologies.

Marc Solomon

Stop, Collaborate and Listen: Disrupting Cybercrime Networks Requires Private-Public Cooperation and Information Sharing

No one combatting cybercrime knows everything, but everyone in the battle has some intelligence to contribute to the larger knowledge base.

Derek Manky

How the Atomized Network Changed Enterprise Protection

Our networks have become atomized which, for starters, means they’re highly dispersed. Not just in terms of the infrastructure – legacy, on-premises, hybrid, multi-cloud, and edge.

Matt Wilson

Mapping Threat Intelligence to the NIST Compliance Framework Part 2

How threat intelligence is critical when justifying budget for GRC personnel, and for threat intelligence, incident response, security operations and CISO buyers.

Landon Winkelvoss

Password Dependency: How to Break the Cycle

Hackers rarely hack in anymore. They log in using stolen, weak, default, or otherwise compromised credentials. That’s why it’s so critical to break the password dependency cycle. But how can this be done?

Torsten George