CVE-2021-21220: Google Chromium V8 Improper Input Validation Vulnerability
First published: Wed Apr 07 2021(Updated: )
Google Chromium V8 Engine contains an improper input validation vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Credit: chrome-cve-admin@google.com Bruno Keith & Niklas Baumstark (@_niklasb) @bkth_ Dataflow Security chrome-cve-admin@google.com chrome-cve-admin@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome | <89.0.4389.128 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Google Chrome | <89.0.4389.128 | 89.0.4389.128 |
| <89.0.4389.128 | ||
| =32 | ||
| =33 | ||
| =34 | ||
| Google Chromium V8 |
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Reference Links
- http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html
- https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html (Advisory)
- https://crbug.com/1196683
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
- https://security.gentoo.org/glsa/202104-08
- http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
- https://nvd.nist.gov/vuln/detail/CVE-2021-21220
Frequently Asked Questions
What is CVE-2021-21220?
CVE-2021-21220 is a vulnerability in the Google Chromium V8 Engine that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Which software is affected by CVE-2021-21220?
Web browsers that utilize Chromium, including Google Chrome and Microsoft Edge, are affected by CVE-2021-21220.
What is the severity of CVE-2021-21220?
CVE-2021-21220 has a severity rating of 8.8, indicating a high severity.
How can the CVE-2021-21220 vulnerability be exploited?
CVE-2021-21220 can be exploited by a remote attacker through a crafted HTML page, potentially leading to heap corruption.
Are Fedora operating systems affected by CVE-2021-21220?
Yes, Fedora operating systems, specifically versions 32, 33, and 34, are affected by CVE-2021-21220.
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