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CVE-2018-12378

Published: 6 September 2018

A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream Needs triage

xenial
Released (62.0+build2-0ubuntu0.16.04.3)
bionic
Released (62.0+build2-0ubuntu0.18.04.3)
trusty
Released (62.0+build2-0ubuntu0.14.04.3)
thunderbird
Launchpad, Ubuntu, Debian
upstream
Released (60.2.1)
xenial
Released (1:60.2.1+build1-0ubuntu0.16.04.4)
bionic
Released (1:60.2.1+build1-0ubuntu0.18.04.2)
trusty
Released (1:60.2.1+build1-0ubuntu0.14.04.2)
firefox-esr
Launchpad, Ubuntu, Debian
upstream
Released (60.2.0esr-1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

Severity score breakdown

Parameter Value
Base score 9.8
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