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CVE-2017-5389

Published: 25 January 2017

WebExtensions could use the "mozAddonManager" API by modifying the CSP headers on sites with the appropriate permissions and then using host requests to redirect script loads to a malicious site. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 51.

Priority

Medium

CVSS 3 base score: 6.1

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise
Released (51.0.1+build2-0ubuntu0.12.04.1)
trusty Does not exist
(trusty was released [51.0.1+build2-0ubuntu0.14.04.1])
upstream
Released (51)
xenial
Released (51.0.1+build2-0ubuntu0.16.04.1)
yakkety
Released (51.0.1+build2-0ubuntu0.16.10.1)
zesty
Released (52.0.1+build2-0ubuntu1)
thunderbird
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

xenial Not vulnerable

yakkety Not vulnerable

zesty Not vulnerable