Vulnerability Description
Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.
CVSS Score
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 89.0.4389.72 | |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 10.0 |
References
- https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.Release NotesVendor Advisory
- https://crbug.com/1155516Permissions Required
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202104-08Third Party Advisory
- https://www.debian.org/security/2021/dsa-4886Third Party Advisory
- https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.Release NotesVendor Advisory
- https://crbug.com/1155516Permissions Required
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202104-08Third Party Advisory
- https://www.debian.org/security/2021/dsa-4886Third Party Advisory
FAQ
What is CVE-2021-21187?
CVE-2021-21187 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.
How severe is CVE-2021-21187?
CVE-2021-21187 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21187?
Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Fedoraproject Fedora, Debian Debian Linux.