CVE-2017-7815
Publication date 2 October 2017
Last updated 25 August 2025
Ubuntu priority
Description
On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will have an arbitrary domains as the dialog's location, spoofing of the origin of the modal dialog from the user view. Note: This attack only affects installations with e10 multiprocess turned off. Installations with e10s turned on do not support the modal dialog functionality. This vulnerability affects Firefox < 56.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| firefox | 18.04 LTS bionic |
Fixed 56.0+build6-0ubuntu1
|
| 16.04 LTS xenial |
Fixed 56.0+build6-0ubuntu0.16.04.1
|
|
| 14.04 LTS trusty |
Fixed 56.0+build6-0ubuntu0.14.04.1
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
5.3 · Medium
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-3435-1
- Firefox vulnerabilities
- 2 October 2017