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CVE-2017-5120

Published: 27 October 2017

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).

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
chromium-browser
Launchpad, Ubuntu, Debian
artful
Released (61.0.3163.100-0ubuntu1.1378)
bionic
Released (61.0.3163.100-0ubuntu1.1378)
cosmic
Released (61.0.3163.100-0ubuntu1.1378)
trusty
Released (61.0.3163.100-0ubuntu0.14.04.1202)
upstream
Released (61.0.3163.79)
xenial
Released (61.0.3163.100-0ubuntu0.16.04.1306)
zesty
Released (61.0.3163.100-0ubuntu0.17.04.1377)
oxide-qt
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [Ubuntu touch end-of-life])
upstream Needs triage

xenial Ignored
(Ubuntu touch end-of-life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 6.5
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