CVE-2016-1949

Publication date 11 February 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Mozilla Firefox before 44.0.2 does not properly restrict the interaction between Service Workers and plugins, which allows remote attackers to bypass the Same Origin Policy via a crafted web site that triggers spoofed responses to requests that use NPAPI, as demonstrated by a request for a crossdomain.xml file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	15.10 wily	Fixed 44.0.2+build1-0ubuntu0.15.10.1
	15.04 vivid	Ignored end of life, was needed
	14.04 LTS trusty	Fixed 44.0.2+build1-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed 44.0.2+build1-0ubuntu0.12.04.1
thunderbird	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-2893-1
Firefox vulnerability
11 February 2016