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CVE-2019-11747

Published: 4 September 2019

The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Negligible

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

xenial Does not exist

impish Does not exist

groovy Ignored
(end of life)
hirsute Does not exist

lunar Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Does not exist

trusty Does not exist

upstream Needs triage

impish Does not exist

groovy Does not exist

hirsute Does not exist

lunar Does not exist

jammy Does not exist

kinetic Does not exist

xenial Does not exist

mantic Does not exist

firefox
Launchpad, Ubuntu, Debian
impish
Released (69.0.1+build1-0ubuntu2)
groovy
Released (69.0.1+build1-0ubuntu2)
hirsute
Released (69.0.1+build1-0ubuntu2)
kinetic
Released (69.0.1+build1-0ubuntu2)
lunar
Released (69.0.1+build1-0ubuntu2)
bionic
Released (69.0+build2-0ubuntu0.18.04.1)
disco
Released (69.0+build2-0ubuntu0.19.04.1)
eoan
Released (69.0.1+build1-0ubuntu2)
focal
Released (69.0.1+build1-0ubuntu2)
jammy
Released (69.0.1+build1-0ubuntu2)
trusty Does not exist

upstream
Released (69.0)
xenial
Released (69.0+build2-0ubuntu0.16.04.4)
mantic
Released (69.0.1+build1-0ubuntu2)
mozjs38
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

lunar Does not exist

bionic Needs triage

disco Does not exist

eoan Does not exist

focal Does not exist

jammy Does not exist

kinetic 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 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N