CVE-2017-7838
Publication date 15 November 2017
Last updated 24 July 2024
Ubuntu priority
Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. This vulnerability affects Firefox < 57.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| firefox | 18.04 LTS bionic |
Fixed 57.0.1+build2-0ubuntu1
|
| 16.04 LTS xenial |
Fixed 57.0+build4-0ubuntu0.16.04.5
|
|
| 14.04 LTS trusty |
Fixed 57.0+build4-0ubuntu0.14.04.4
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.3 · Medium
|
| 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 |
References
Related Ubuntu Security Notices (USN)
- USN-3477-1
- Firefox vulnerabilities
- 16 November 2017