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CVE-2016-9075

Published: 17 November 2016

An issue where WebExtensions can use the mozAddonManager API to elevate privilege due to privileged pages being allowed in the permissions list. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 50.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (50.0)
precise
Released (50.0+build2-0ubuntu0.12.04.2)
xenial
Released (50.0+build2-0ubuntu0.16.04.2)
yakkety
Released (50.0+build2-0ubuntu0.16.10.2)
trusty
Released (50.0+build2-0ubuntu0.14.04.2)
thunderbird
Launchpad, Ubuntu, Debian
upstream Not vulnerable

precise Not vulnerable

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

yakkety Not vulnerable

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H