Vulnerability · Published Mar 9, 2021 · Assigned by Chrome
CVE-2021-21187
Medium 4.3
In plain English
A medium-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)1.5%top 26.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | chromium | 89.0.4389.72-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.21 | chromium | 89.0.4389.72-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.22 | chromium | 89.0.4389.72-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.23 | chromium | 89.0.4389.72-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.24 | chromium | 89.0.4389.72-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.20 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21187 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20200401-r0 | ALPINE-CVE-2021-21187 |
| Debian:12 | chromium | 89.0.4389.82-1 | DEBIAN-CVE-2021-21187 |
| Debian:13 | chromium | 89.0.4389.82-1 | DEBIAN-CVE-2021-21187 |
| Debian:14 | chromium | 89.0.4389.82-1 | DEBIAN-CVE-2021-21187 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html x_refsource_MISC
- https://crbug.com/1155516 x_refsource_MISC
- FEDORA-2021-c88a96bd4b vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-4740239e28 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-78547312f2 vendor-advisory, x_refsource_FEDORA
- DSA-4886 vendor-advisory, x_refsource_DEBIAN
- GLSA-202104-08 vendor-advisory, x_refsource_GENTOO