CVE-2021-21151 Use after free in Chrome

Critical 9.6 Published Updated

A remote attacker can execute arbitrary code and escape the sandbox via a crafted HTML page due to a use-after-free flaw in Chrome Payments.

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-2021-21151?

CVE-2021-21151 is a critical use after free vulnerability in Fedoraproject Fedora, published on 22 Feb 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 Payments in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Weakness: CWE-416

Which versions are affected by CVE-2021-21151?

It affects 2 products.

Products include Fedoraproject Fedora, Google Chrome.

How do I fix CVE-2021-21151?

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-2021-21151 being exploited?

There is no known exploitation of CVE-2021-21151 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-21151, GHSA-76vx-mj3m-f22w, UBUNTU-CVE-2021-21151.

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