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CVE-2016-2820

Published: 27 April 2016

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise
Released (46.0+build5-0ubuntu0.12.04.2)
trusty
Released (46.0+build5-0ubuntu0.14.04.2)
upstream
Released (46.0)
wily
Released (46.0+build5-0ubuntu0.15.10.2)
xenial
Released (46.0+build5-0ubuntu0.16.04.2)
thunderbird
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

wily Not vulnerable

xenial Not vulnerable

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N