CVE-2016-1949

Publication date 11 February 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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
thunderbird	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
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

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)