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.
The product does not validate, or incorrectly validates, a certificate.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1303418 | issue tracking patch |
| http://www.securitytracker.com/id/1037298 | vdb entry third party advisory |
| https://security.gentoo.org/glsa/201701-15 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/94336 | vdb entry third party advisory |
| http://rhn.redhat.com/errata/RHSA-2016-2780.html | third party advisory vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2016-89/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2016-90/ | vendor advisory |