Security Experts:

Connect with us

Hi, what are you looking for?



Google Working on Improving Memory Safety in Chrome

Google this week shared some details on its long-term plan to improve memory safety in Chrome, while also announcing the first stable release of Chrome 94, which patches a total of 19 vulnerabilities.

Google this week shared some details on its long-term plan to improve memory safety in Chrome, while also announcing the first stable release of Chrome 94, which patches a total of 19 vulnerabilities.

Over 70% of the severe bugs identified last year in Chrome were memory safety issues, namely “mistakes with pointers in the C or C++ languages,” and Google decided to tackle the problem before it becomes even more serious.

Of the potential solutions, the Internet search giant decided to focus on two, namely introducing runtime checks to ensure that pointers are correct, and seeking a different memory safe programming language.

“Runtime checks have a performance cost. Checking the correctness of a pointer is an infinitesimal cost in memory and CPU time. But with millions of pointers, it adds up,” Google notes.

Even so, this was deemed a desirable option, and, despite performance loss, Google is experimenting with it alongside attempts to find a suitable replacement for C++, most likely Rust, which is largely compile-time safe.

“[T]he Rust compiler spots mistakes with pointers before the code even gets to your device, and thus there’s no performance penalty,” Google explains.

For the time being, however, the company is only interested in the manner in which it can make C++ and Rust work together, and has already started non-user-facing Rust experiments.

In the meantime, Windows, Mac, and Linux users can now download Chrome 94.0.4606.54, which patches 19 security holes, including 17 externally-reported: five high-severity, ten medium-severity, and two low-severity vulnerabilities.

The most important of the high-severity issues appears to be CVE-2021-37956, a use-after-free flaw in Offline use, for which Google awarded a $15,000 bounty reward.

The company also paid $7,500 for a use-after-free bug in WebGPU, $3,000 for inappropriate implementation in Navigation, and $1,000 for a use-after-free issue in Task Manager.

Google also says it paid high rewards for five medium-severity vulnerabilities: $10,000 each for a use-after-free flaw in Tab Strip and another in Performance Manager, and $3,000 each for side-channel information leakage in DevTools, inappropriate implementation in ChromeOS Networking, and inappropriate implementation in Background Fetch API.

Overall, Google handed out over $56,000 in bounty payouts to the reporting researchers, but the total amount is likely much higher, given that the company has yet to reveal the rewards for seven of the addressed issues.

Related: Google Warns of Exploited Zero-Days in Chrome Browser

Related: Google Awards Over $130,000 for Flaws Patched With Release of Chrome 93

Related: Google Awards $42,000 for Two Serious Chrome Vulnerabilities

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join this webinar to learn best practices that organizations can use to improve both their resilience to new threats and their response times to incidents.


Join this live webinar as we explore the potential security threats that can arise when third parties are granted access to a sensitive data or systems.


Expert Insights

Related Content


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...


Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

IoT Security

Lexmark warns of a remote code execution (RCE) vulnerability impacting over 120 printer models, for which PoC code has been published.

Application Security

A CSRF vulnerability in the source control management (SCM) service Kudu could be exploited to achieve remote code execution in multiple Azure services.


GoAnywhere MFT users warned about a zero-day remote code injection exploit that can be targeted directly from the internet