CVE-2017-7833
Published: 15 November 2017
Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
artful |
Released
(57.0+build4-0ubuntu0.17.10.5)
|
| bionic |
Released
(57.0.1+build2-0ubuntu1)
|
|
| trusty |
Released
(57.0+build4-0ubuntu0.14.04.4)
|
|
| upstream |
Released
(57.0)
|
|
| xenial |
Released
(57.0+build4-0ubuntu0.16.04.5)
|
|
| zesty |
Released
(57.0+build4-0ubuntu0.17.04.5)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.3 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |