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CVE-2017-5449

Published: 20 April 2017

A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise Ignored

trusty
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 Ignored
(end of life)
trusty
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)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H