CVE-2016-9064

Publication date 16 November 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user's connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
thunderbird	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
firefox	16.10 yakkety	Fixed 50.0+build2-0ubuntu0.16.10.2
	16.04 LTS xenial	Fixed 50.0+build2-0ubuntu0.16.04.2
	14.04 LTS trusty	Fixed 50.0+build2-0ubuntu0.14.04.2
	12.04 LTS precise	Fixed 50.0+build2-0ubuntu0.12.04.2

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)