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CVE-2018-12397

Published: 24 October 2018

A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

7.1

Score breakdown

Status

Package Release Status
firefox-esr
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
focal Does not exist

bionic Does not exist

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

firefox
Launchpad, Ubuntu, Debian
bionic
Released (63.0+build2-0ubuntu0.18.04.2)
cosmic
Released (63.0+build2-0ubuntu0.18.10.2)
disco
Released (63.0+build1-0ubuntu1)
eoan
Released (63.0+build1-0ubuntu1)
focal
Released (63.0+build1-0ubuntu1)
groovy
Released (63.0+build1-0ubuntu1)
hirsute
Released (63.0+build1-0ubuntu1)
impish
Released (63.0+build1-0ubuntu1)
jammy
Released (63.0+build1-0ubuntu1)
kinetic
Released (63.0+build1-0ubuntu1)
lunar
Released (63.0+build1-0ubuntu1)
trusty
Released (63.0+build2-0ubuntu0.14.04.2)
upstream
Released (63.0)
xenial
Released (63.0+build2-0ubuntu0.16.04.2)
mantic
Released (63.0+build1-0ubuntu1)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

groovy Ignored
(end of life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

Severity score breakdown

Parameter Value
Base score 7.1
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N