CVE-2021-21187
published 2021-03-09CVE-2021-21187: 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…
PriorityP420medium4.3CVSS 3.1
AVNACLPRNUIRSUCNILAN
EPSS
1.45%
70.4th percentile
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
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| debian | chromium | < chromium 89.0.4389.82-1 (bookworm) | chromium 89.0.4389.82-1 (bookworm) |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| chrome | < 89.0.4389.72 | 89.0.4389.72 | |
| chrome | >= unspecified < 89.0.4389.72 | 89.0.4389.72 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv4.3MEDIUM
vendor_debian4.3MEDIUM
vendor_msrc4.3MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Microsoft
Chromium CVE-2021-21187: Insufficient data validation in URL formatting
vendor_msrc·2021-03-09·CVSS 4.3
CVE-2021-21187 [MEDIUM] Chromium CVE-2021-21187: Insufficient data validation in URL formatting
Chromium CVE-2021-21187: Insufficient data validation in URL formatting
Description: This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
FAQ: Why is this Chrome CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. Please see Security Update Guide Supports CVEs Assigned by Industry Partners for more information.
How can I see the version of the browser?
In your Microsoft Edge browser, click on the 3
Chrome
Stable Channel Update for Desktop: CVE-2021-21185
vendor_chrome·2021-03-02·CVSS 4.3
CVE-2021-21185 [LOW] Stable Channel Update for Desktop: CVE-2021-21185
Stable Channel Update for Desktop
CVE-2021-21185: Insufficient policy enforcement in extensions. Reported by David Erceg on 2020-06-30 [$TBD][ 1153445 ] Low CVE-2021-21186: Insufficient policy enforcement in QR scanning
Reported by dhirajkumarnifty on 2020-11-28 [$TBD][ 1155516 ] Low CVE-2021-21187: Insufficient data validation in URL formatting
Severity: low
Debian
CVE-2021-21187: chromium - Insufficient data validation in URL formatting in Google Chrome prior to 89.0.43...
vendor_debian·2021·CVSS 4.3
CVE-2021-21187 [MEDIUM] CVE-2021-21187: chromium - Insufficient data validation in URL formatting in Google Chrome prior to 89.0.43...
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.
Scope: local
bookworm: resolved (fixed in 89.0.4389.82-1)
bullseye: resolved (fixed in 89.0.4389.82-1)
forky: resolved (fixed in 89.0.4389.82-1)
sid: resolved (fixed in 89.0.4389.82-1)
trixie: resolved (fixed in 89.0.4389.82-1)
GHSA
GHSA-qfrh-wxjj-4q4p: Insufficient data validation in URL formatting in Google Chrome prior to 89
ghsa_unreviewed·2022-05-24
CVE-2021-21187 [MEDIUM] GHSA-qfrh-wxjj-4q4p: Insufficient data validation in URL formatting in Google Chrome prior to 89
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.
OSV
CVE-2021-21187: Insufficient data validation in URL formatting in Google Chrome prior to 89
osv·2021-03-09·CVSS 4.3
CVE-2021-21187 [MEDIUM] CVE-2021-21187: Insufficient data validation in URL formatting in Google Chrome prior to 89
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.htmlhttps://crbug.com/1155516https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/https://security.gentoo.org/glsa/202104-08https://www.debian.org/security/2021/dsa-4886https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.htmlhttps://crbug.com/1155516https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/https://security.gentoo.org/glsa/202104-08https://www.debian.org/security/2021/dsa-4886
2021-03-09
Published