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CVE-2017-5447

Published: 20 April 2017

An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Priority

Medium

CVSS 3 base score: 9.1

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored)
trusty Does not exist
(trusty was released [53.0+build6-0ubuntu0.14.04.1])
upstream
Released (53.0)
xenial
Released (53.0+build6-0ubuntu0.16.04.1)
yakkety
Released (53.0+build6-0ubuntu0.16.10.1)
zesty
Released (53.0+build6-0ubuntu0.17.04.1)
thunderbird
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was needs-triage)
trusty Does not exist
(trusty was released [1:52.1.1+build1-0ubuntu0.14.04.1])
upstream
Released (52.1.1)
xenial
Released (1:52.1.1+build1-0ubuntu0.16.04.1)
yakkety
Released (1:52.1.1+build1-0ubuntu0.16.10.1)
zesty
Released (1:52.1.1+build1-0ubuntu0.17.04.1)