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CVE-2021-29974

Published: 15 July 2021

When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

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

bionic Does not exist

focal Does not exist

groovy Ignored
(end of life)
trusty Does not exist

upstream Needs triage

hirsute Ignored
(end of life)
jammy Needs triage

impish Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

groovy Ignored
(end of life)
hirsute Not vulnerable

impish Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

firefox
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic
Released (90.0+build1-0ubuntu0.18.04.1)
focal
Released (90.0+build1-0ubuntu0.20.04.1)
groovy
Released (90.0+build1-0ubuntu0.20.10.1)
hirsute
Released (90.0+build1-0ubuntu0.21.04.1)
upstream
Released (90)
impish
Released (90.0+build1-0ubuntu1)
jammy
Released (90.0+build1-0ubuntu1)
kinetic
Released (90.0+build1-0ubuntu1)
lunar
Released (90.0+build1-0ubuntu1)
xenial Ignored
(end of standard support, was needed)
mantic
Released (90.0+build1-0ubuntu1)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

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

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
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

mozjs68
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needs triage

groovy Ignored
(end of life)
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

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