Bug 1395060 (CVE-2016-9064) - CVE-2016-9064 Mozilla: Addons update must verify IDs match between current and new versions (MFSA 2016-89, MFSA 2016-90)
Summary: CVE-2016-9064 Mozilla: Addons update must verify IDs match between current an...
Alias: CVE-2016-9064
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: 1392803
TreeView+ depends on / blocked
Reported: 2016-11-15 03:38 UTC by Huzaifa S. Sidhpurwala
Modified: 2021-02-17 03:03 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the way Add-on update process was handled by Firefox. A Man-in-the-Middle attacker could use this flaw to install a malicious signed add-on update.
Clone Of:
Last Closed: 2016-11-24 05:35:45 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2780 0 normal SHIPPED_LIVE Critical: firefox security update 2016-11-16 13:19:10 UTC

Description Huzaifa S. Sidhpurwala 2016-11-15 03:38:53 UTC
Addon 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.

External Reference:



Name: the Mozilla project

Comment 3 errata-xmlrpc 2016-11-16 08:20:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:2780 https://rhn.redhat.com/errata/RHSA-2016-2780.html

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