CVE-2021-30551 Google Chromium V8 Type Confusion
A type confusion vulnerability in V8 allows remote attackers to execute arbitrary code via heap corruption triggered by a crafted HTML page.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-30551?
CVE-2021-30551 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 15 Jun 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
Type confusion in V8 in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Weakness: CWE-843
Which versions are affected by CVE-2021-30551?
It affects 2 products.
Products include Fedoraproject Fedora, Google Chrome.
How do I fix CVE-2021-30551?
Upgrade to a fixed version. US federal agencies must fix it by 17 Nov 2021.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-30551 being exploited?
Yes. Attackers have exploited CVE-2021-30551 in the wild since at least 3 Nov 2021.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as CLEANSTART-2024-IN49524, DEBIAN-CVE-2021-30551, GHSA-gmxf-qj4v-rf52, UBUNTU-CVE-2021-30551.