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CVE-2023-5729

Published: 25 October 2023

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur
starting with Ubuntu 22.04, the firefox package is just a script
that installs the Firefox snap

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
bionic Ignored
(end of standard support)
jammy Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
upstream Needs triage

focal
Released (119.0+build2-0ubuntu0.20.04.1)
lunar Ignored
(end of life, was needs-triage)
thunderbird
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
bionic Ignored
(end of standard support)
focal Not vulnerable

jammy Not vulnerable

mantic Not vulnerable

upstream Needs triage

lunar Ignored
(end of life, was needed)
mozjs38
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

mozjs52
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Needs triage

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

mozjs68
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

mozjs78
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

lunar Ignored
(end of life, was needs-triage)
mozjs91
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Needs triage

lunar Does not exist

mantic Does not exist

upstream Needs triage

mozjs102
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Needs triage

mantic Needs triage

upstream Needs triage

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

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N