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CVE-2020-15664

Published: 26 August 2020

By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (80.0+build2-0ubuntu0.18.04.1)
focal
Released (80.0+build2-0ubuntu0.20.04.1)
groovy
Released (80.0.1+build1-0ubuntu1)
hirsute
Released (80.0.1+build1-0ubuntu1)
impish
Released (80.0.1+build1-0ubuntu1)
jammy
Released (80.0.1+build1-0ubuntu1)
kinetic
Released (80.0.1+build1-0ubuntu1)
lunar
Released (80.0.1+build1-0ubuntu1)
mantic
Released (80.0.1+build1-0ubuntu1)
noble
Released (80.0.1+build1-0ubuntu1)
trusty Does not exist

upstream
Released (80)
xenial
Released (80.0+build2-0ubuntu0.16.04.1)
firefox-esr
Launchpad, Ubuntu, Debian
bionic 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

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream
Released (68.12.0esr-1)
xenial Does not exist

mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

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

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

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

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs60
Launchpad, Ubuntu, Debian
bionic 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

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs68
Launchpad, Ubuntu, Debian
bionic Does not exist

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

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
groovy Not vulnerable
(1:78.3.2+build1-0ubuntu1)
hirsute Not vulnerable
(1:78.4.3+build1-0ubuntu1)
impish Not vulnerable
(1:78.4.3+build1-0ubuntu1)
jammy Not vulnerable
(1:78.4.3+build1-0ubuntu1)
kinetic Not vulnerable
(1:78.4.3+build1-0ubuntu1)
lunar Not vulnerable
(1:78.4.3+build1-0ubuntu1)
mantic Not vulnerable
(1:78.4.3+build1-0ubuntu1)
noble Not vulnerable
(1:78.4.3+build1-0ubuntu1)
trusty Does not exist

upstream
Released (68.12)
xenial Ignored
(end of standard support, was needed)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N