CVE-2017-5386

Published: 25 January 2017

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.

Priority

Medium

CVSS 3 base score: 7.3

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
Upstream
Released (51)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (51.0.1+build2-0ubuntu0.16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [51.0.1+build2-0ubuntu0.14.04.1])
thunderbird
Launchpad, Ubuntu, Debian
Upstream Not vulnerable

Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected)