Vulnerability 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 Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 89.0.4389.128 | |
| Fedoraproject | Fedora | 32 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-BoundExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-ExeThird Party AdvisoryVDB Entry
- https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.Release Notes
- https://crbug.com/1196683ExploitIssue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
- https://security.gentoo.org/glsa/202104-08Third Party Advisory
- http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-BoundExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-ExeThird Party AdvisoryVDB Entry
- https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.Release Notes
- https://crbug.com/1196683ExploitIssue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproRelease Notes
FAQ
What is CVE-2021-21220?
CVE-2021-21220 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.
How severe is CVE-2021-21220?
CVE-2021-21220 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21220?
Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Fedoraproject Fedora.