CVE-2016-5254

Published: 03 August 2016

Use-after-free vulnerability in the nsXULPopupManager::KeyDown function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by leveraging keyboard access to use the Alt key during selection of top-level menu items.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
Upstream
Released (48)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (48.0+build2-0ubuntu0.16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [48.0+build2-0ubuntu0.14.04.1])
thunderbird
Launchpad, Ubuntu, Debian
Upstream Not vulnerable

Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable

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