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CVE-2019-11741

Published: 4 September 2019

A compromised sandboxed content process can perform a Universal Cross-site Scripting (UXSS) attack on content from any site it can cause to be loaded in the same process. Because addons.mozilla.org and accounts.firefox.com have close ties to the Firefox product, malicious manipulation of these sites within the browser can potentially be used to modify a user's Firefox configuration. These two sites will now be isolated into their own process and not allowed to be loaded in a standard content process. This vulnerability affects Firefox < 69.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (69.0+build2-0ubuntu0.18.04.1)
disco
Released (69.0+build2-0ubuntu0.19.04.1)
eoan
Released (69.0.1+build1-0ubuntu2)
focal
Released (69.0.1+build1-0ubuntu2)
trusty Does not exist

xenial
Released (69.0+build2-0ubuntu0.16.04.4)
groovy
Released (69.0.1+build1-0ubuntu2)
hirsute
Released (69.0.1+build1-0ubuntu2)
impish
Released (69.0.1+build1-0ubuntu2)
jammy
Released (69.0.1+build1-0ubuntu2)
kinetic
Released (69.0.1+build1-0ubuntu2)
lunar
Released (69.0.1+build1-0ubuntu2)
upstream
Released (69.0)
mantic
Released (69.0.1+build1-0ubuntu2)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

lunar Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
lunar Does not exist

bionic Needs triage

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

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
lunar Does not exist

bionic Does not exist

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic 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 6.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N