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CVE-2021-23961

Published: 26 January 2021

Further techniques that built on the slipstream research combined with 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 < 85.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

7.4

Score breakdown

Status

Package Release Status
mozjs78
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream Needs triage

xenial Does not exist

impish Ignored
(end of life)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
bionic Does not exist

focal Does not exist

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Needs triage

thunderbird
Launchpad, Ubuntu, Debian
impish
Released (1:78.11.0+build1-0ubuntu2)
groovy
Released (1:78.11.0+build1-0ubuntu0.20.10.2)
hirsute
Released (1:78.11.0+build1-0ubuntu0.21.04.2)
trusty Does not exist

xenial Ignored
(end of standard support)
upstream
Released (78.10)
bionic
Released (1:78.11.0+build1-0ubuntu0.18.04.2)
focal
Released (1:78.11.0+build1-0ubuntu0.20.04.2)
jammy
Released (1:78.11.0+build1-0ubuntu2)
kinetic
Released (1:78.11.0+build1-0ubuntu2)
lunar
Released (1:78.11.0+build1-0ubuntu2)
firefox
Launchpad, Ubuntu, Debian
impish
Released (85.0+build1-0ubuntu1)
upstream
Released (85)
trusty Does not exist

bionic
Released (85.0+build1-0ubuntu0.18.04.1)
hirsute
Released (85.0+build1-0ubuntu1)
focal
Released (85.0+build1-0ubuntu0.20.04.1)
groovy
Released (85.0+build1-0ubuntu0.20.10.1)
xenial
Released (85.0+build1-0ubuntu0.16.04.1)
jammy
Released (85.0+build1-0ubuntu1)
kinetic
Released (85.0+build1-0ubuntu1)
lunar
Released (85.0+build1-0ubuntu1)
mozjs38
Launchpad, Ubuntu, Debian
impish Does not exist

upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mozjs52
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Ignored
(end of life)
upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Needs triage

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mozjs60
Launchpad, Ubuntu, Debian
impish Does not exist

upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mozjs68
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Ignored
(end of life)
upstream Needs triage

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

Severity score breakdown

Parameter Value
Base score 7.4
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N