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CVE-2021-21220

Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap...

Basic Information

CVE State
PUBLISHED
Reserved Date
December 21, 2020
Published Date
April 26, 2021
Last Updated
February 03, 2025
Vendor
Google
Product
Chrome
Description
Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS Scores

SSVC Information

Exploitation
active
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (added 2021-11-03 00:00:00 UTC) Source
Proof of Concept Available
Yes (added 2021-09-15 03:11:41 UTC) Source

References

https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html https://crbug.com/1196683 https://security.gentoo.org/glsa/202104-08 http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ 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/ http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-03 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_cve_2021_21220_v8_insufficient_validation.rb 2025-04-29 11:01:19 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

chrome_cve_2021_21220_v8_insufficient_validation

Type: metasploit • Created: Unknown

Metasploit module for CVE-2021-21220

security-dbg/CVE-2021-21220

Type: github • Created: 2021-09-15 03:11:41 UTC • Stars: 9