CVE-2021-4221
published 2022-12-22CVE-2021-4221: If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing…
PriorityP416medium4.3CVSS 3.1
AVNACLPRNUIRSUCNILAN
EPSS
0.41%
33.8th percentile
If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.**Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | — | — |
| mozilla | firefox | < 92.0 | 92.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= unspecified < 92 | 92 |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
vendor_debian4.3LOW
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Debian
CVE-2021-4221: firefox - If a domain name contained a RTL character, it would cause the domain to be rend...
vendor_debian·2021·CVSS 4.3
CVE-2021-4221 [MEDIUM] CVE-2021-4221: firefox - If a domain name contained a RTL character, it would cause the domain to be rend...
If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.**Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.
Scope: local
sid: resolved
Mozilla
Mozilla Foundation Security Advisory 2021-38: CVE-2021-4221
vendor_mozilla·CVSS 4.3
CVE-2021-4221 [MEDIUM] Mozilla Foundation Security Advisory 2021-38: CVE-2021-4221
Mozilla Foundation Security Advisory 2021-38
CVE: CVE-2021-4221
Product: Firefox
Impact: high
Fixed in: Firefox 92
GHSA
GHSA-wmph-fgw4-55rj: If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path
ghsa_unreviewed·2022-12-22
CVE-2021-4221 [MEDIUM] CWE-1007 GHSA-wmph-fgw4-55rj: If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path
If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.**Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-12-22
Published