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CVE-2020-6823

Published: 7 April 2020

A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling the redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account at the service provider. This vulnerability affects Firefox < 75.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
mozjs52
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
impish Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

hirsute Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs68
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

eoan Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

firefox
Launchpad, Ubuntu, Debian
hirsute
Released (75.0+build3-0ubuntu1)
impish
Released (75.0+build3-0ubuntu1)
kinetic
Released (75.0+build3-0ubuntu1)
lunar
Released (75.0+build3-0ubuntu1)
bionic
Released (75.0+build3-0ubuntu0.18.04.1)
eoan
Released (75.0+build3-0ubuntu0.19.10.1)
focal
Released (75.0+build3-0ubuntu1)
groovy
Released (75.0+build3-0ubuntu1)
jammy
Released (75.0+build3-0ubuntu1)
trusty Does not exist

upstream
Released (75.0)
xenial
Released (75.0+build3-0ubuntu0.16.04.1)
mantic
Released (75.0+build3-0ubuntu1)
mozjs38
Launchpad, Ubuntu, Debian
hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

eoan Does not exist

focal Does not exist

groovy Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
hirsute Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

eoan Ignored
(end of life)
focal Does not exist

groovy Does not exist

impish Does not exist

jammy 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 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H