CVE-2017-5120
Publication date 27 October 2017
Last updated 25 August 2025
Ubuntu priority
Inappropriate use of www mismatch redirects in browser navigation in Google Chrome prior to 61.0.3163.79 for Mac, Windows, and Linux, and 61.0.3163.81 for Android, allowed a remote attacker to potentially downgrade HTTPS requests to HTTP via a crafted HTML page. In other words, Chrome could transmit cleartext even though the user had entered an https URL, because of a misdesigned workaround for cases where the domain name in a URL almost matches the domain name in an X.509 server certificate (but differs in the initial "www." substring).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| chromium-browser | ||
| 18.04 LTS bionic |
Fixed 61.0.3163.100-0ubuntu1.1378
|
|
| 16.04 LTS xenial |
Fixed 61.0.3163.100-0ubuntu0.16.04.1306
|
|
| 14.04 LTS trusty |
Fixed 61.0.3163.100-0ubuntu0.14.04.1202
|
|
| oxide-qt | ||
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Ignored Ubuntu touch end-of-life | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |