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CVE-2022-26387

Published: 9 March 2022

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (98.0+build3-0ubuntu0.18.04.2)
focal
Released (98.0+build3-0ubuntu0.20.04.2)
impish
Released (98.0+build3-0ubuntu0.21.10.2)
jammy
Released (1:1snap1-0ubuntu1)
kinetic
Released (1:1snap1-0ubuntu1)
lunar
Released (1:1snap1-0ubuntu1)
mantic
Released (1:1snap1-0ubuntu1)
noble
Released (1:1snap1-0ubuntu1)
trusty Does not exist

upstream
Released (98)
xenial Ignored
(end of standard support)
firefox-esr
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
upstream
Released (91.7.0esr-1)
xenial Ignored
(end of standard support)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

focal 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

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

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

mozjs78
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Ignored
(end of life)
jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
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 (1:91.7.0+build2-0ubuntu0.18.04.1)
focal
Released (1:91.7.0+build2-0ubuntu0.20.04.1)
impish
Released (1:91.7.0+build2-0ubuntu0.21.10.1)
jammy
Released (1:91.7.0+build2-0ubuntu1)
kinetic
Released (1:91.7.0+build2-0ubuntu1)
lunar
Released (1:91.7.0+build2-0ubuntu1)
mantic
Released (1:91.7.0+build2-0ubuntu1)
noble
Released (1:91.7.0+build2-0ubuntu1)
trusty Does not exist

upstream
Released (91.7)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H