CVE-2021-37985 Use after free in Chrome

High 8.8 Published Updated

Remote attackers can exploit heap corruption via crafted HTML pages if users allow debugger connections, potentially leading to code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2021-37985?

CVE-2021-37985 is a high-severity use after free vulnerability in Debian Debian Linux, published on 2 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Use after free in V8 in Google Chrome prior to 95.0.4638.54 allowed a remote attacker who had convinced a user to allow for connection to debugger to potentially exploit heap corruption via a crafted HTML page.

Weakness: CWE-416

Which versions are affected by CVE-2021-37985?

It affects 2 products.

Products include Debian Debian Linux, Google Chrome.

How do I fix CVE-2021-37985?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-37985 being exploited?

There is no known exploitation of CVE-2021-37985 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-37985, GHSA-wwmp-j24j-c23h, UBUNTU-CVE-2021-37985.

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