CVE-2017-7832
Published: 15 November 2017
The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. 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 |