Bug 1395060 (CVE-2016-9064)

Summary: CVE-2016-9064 Mozilla: Addons update must verify IDs match between current and new versions (MFSA 2016-89, MFSA 2016-90)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cschalle, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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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.
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Last Closed: 2016-11-24 05:35:45 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1392803    

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:

https://www.mozilla.org/security/announce/2016/mfsa2016-89.html


Acknowledgements:

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