CVE-2017-16541

Publication date 4 November 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	20.10 groovy	Not affected
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Fixed 62.0+build2-0ubuntu0.18.04.3
	16.04 LTS xenial	Fixed 62.0+build2-0ubuntu0.16.04.3
	14.04 LTS trusty	Not in release
thunderbird	20.10 groovy	Not affected
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Fixed 1:60.2.1+build1-0ubuntu0.18.04.2
	16.04 LTS xenial	Fixed 1:60.2.1+build1-0ubuntu0.16.04.4
	14.04 LTS trusty	Not in release

Notes

tyhicks

mozjs contains a copy of the SpiderMonkey JavaScript engine

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	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N