Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2018-18493

Publication date 11 December 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Status

Package Ubuntu Release Status
firefox 18.10 cosmic
Fixed 64.0+build3-0ubuntu0.18.10.1
18.04 LTS bionic
Fixed 64.0+build3-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 64.0+build3-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 64.0+build3-0ubuntu0.14.04.1
thunderbird 18.10 cosmic
Fixed 1:60.4.0+build2-0ubuntu0.18.10.1
18.04 LTS bionic
Fixed 1:60.4.0+build2-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1:60.4.0+build2-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 1:60.4.0+build2-0ubuntu0.14.04.1

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H