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CVE-2020-26978

Published: 15 December 2020

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

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
hirsute
Released (84.0+build3-0ubuntu2)
bionic
Released (84.0+build3-0ubuntu0.18.04.1)
focal
Released (84.0+build3-0ubuntu0.20.04.1)
groovy
Released (84.0+build3-0ubuntu0.20.10.1)
impish
Released (84.0+build3-0ubuntu2)
jammy
Released (84.0+build3-0ubuntu2)
kinetic
Released (84.0+build3-0ubuntu2)
lunar
Released (84.0+build3-0ubuntu2)
trusty Does not exist

upstream
Released (84)
xenial
Released (84.0+build3-0ubuntu0.16.04.1)
mantic
Released (84.0+build3-0ubuntu2)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

xenial 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

mantic Does not exist

thunderbird
Launchpad, Ubuntu, Debian
focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
groovy
Released (1:78.6.1+build1-0ubuntu0.20.10.1)
hirsute
Released (1:78.6.0+build1-0ubuntu1)
upstream
Released (78.6)
xenial Ignored
(end of standard support, was needs-triage)
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
impish
Released (1:78.6.0+build1-0ubuntu1)
jammy
Released (1:78.6.0+build1-0ubuntu1)
kinetic
Released (1:78.6.0+build1-0ubuntu1)
lunar
Released (1:78.6.0+build1-0ubuntu1)
trusty Does not exist

mantic
Released (1:78.6.0+build1-0ubuntu1)
mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial 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
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

mozjs78
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
impish Ignored
(end of life)
bionic Does not exist

focal Does not exist

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
jammy Needs triage

lunar Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic 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

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