CVE-2018-5166
Publication date 11 May 2018
Last updated 25 August 2025
Ubuntu priority
Description
WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| firefox | 18.04 LTS bionic |
Fixed 60.0+build2-0ubuntu1
|
| 16.04 LTS xenial |
Fixed 60.0+build2-0ubuntu0.16.04.1
|
|
| 14.04 LTS trusty |
Fixed 60.0+build2-0ubuntu0.14.04.1
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-3645-1
- Firefox vulnerabilities
- 11 May 2018