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CVE-2019-11744

Published: 4 September 2019

Some HTML elements, such as &lt;title&gt; and &lt;textarea&gt;, can contain literal angle brackets without treating them as markup. It is possible to pass a literal closing tag to .innerHTML on these elements, and subsequent content after that will be parsed as if it were outside the tag. This can lead to XSS if a site does not filter user input as strictly for these elements as it does for other elements. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
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)
impish
Released (69.0.1+build1-0ubuntu2)
groovy
Released (69.0.1+build1-0ubuntu2)
hirsute
Released (69.0.1+build1-0ubuntu2)
jammy
Released (69.0.1+build1-0ubuntu2)
kinetic
Released (69.0.1+build1-0ubuntu2)
lunar
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)
mozjs52
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
impish Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

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

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs38
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

xenial Does not exist

mantic Does not exist

thunderbird
Launchpad, Ubuntu, Debian
impish
Released (1:68.1.0+build3-0ubuntu1)
groovy
Released (1:68.1.0+build3-0ubuntu1)
hirsute
Released (1:68.1.0+build3-0ubuntu1)
jammy
Released (1:68.1.0+build3-0ubuntu1)
kinetic
Released (1:68.1.0+build3-0ubuntu1)
lunar
Released (1:68.1.0+build3-0ubuntu1)
bionic
Released (1:60.9.0+build1-0ubuntu0.18.04.1)
disco
Released (1:60.9.0+build1-0ubuntu0.19.04.1)
eoan
Released (1:68.1.0+build3-0ubuntu1)
focal
Released (1:68.1.0+build3-0ubuntu1)
trusty Does not exist

upstream
Released (60.9.0)
xenial
Released (1:60.9.0+build1-0ubuntu0.16.04.2)
mantic
Released (1:68.1.0+build3-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 6.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N