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CVE-2019-9813

Published: 25 March 2019

Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

kinetic Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

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

trusty Does not exist

upstream Needs triage

xenial Does not exist

kinetic Does not exist

groovy Ignored
(end of life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
kinetic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

firefox
Launchpad, Ubuntu, Debian
kinetic
Released (66.0.1+build1-0ubuntu1)
bionic
Released (66.0.1+build1-0ubuntu0.18.04.1)
cosmic
Released (66.0.1+build1-0ubuntu0.18.10.1)
disco
Released (66.0.1+build1-0ubuntu1)
eoan
Released (66.0.1+build1-0ubuntu1)
focal
Released (66.0.1+build1-0ubuntu1)
groovy
Released (66.0.1+build1-0ubuntu1)
hirsute
Released (66.0.1+build1-0ubuntu1)
impish
Released (66.0.1+build1-0ubuntu1)
jammy
Released (66.0.1+build1-0ubuntu1)
lunar
Released (66.0.1+build1-0ubuntu1)
trusty
Released (66.0.1+build1-0ubuntu0.14.04.1)
upstream
Released (66.0.1)
xenial
Released (66.0.1+build1-0ubuntu0.16.04.1)
mantic
Released (66.0.1+build1-0ubuntu1)
thunderbird
Launchpad, Ubuntu, Debian
kinetic
Released (60.6.1+build2-0ubuntu1)
bionic
Released (1:60.6.1+build2-0ubuntu0.18.04.1)
cosmic
Released (1:60.6.1+build2-0ubuntu0.18.10.1)
disco
Released (60.6.1+build2-0ubuntu1)
eoan
Released (60.6.1+build2-0ubuntu1)
focal
Released (60.6.1+build2-0ubuntu1)
groovy
Released (60.6.1+build2-0ubuntu1)
hirsute
Released (60.6.1+build2-0ubuntu1)
impish
Released (60.6.1+build2-0ubuntu1)
jammy
Released (60.6.1+build2-0ubuntu1)
lunar
Released (60.6.1+build2-0ubuntu1)
trusty
Released (1:60.6.1+build2-0ubuntu0.14.04.1)
upstream
Released (60.6.1)
xenial
Released (1:60.6.1+build2-0ubuntu0.16.04.1)
mantic
Released (60.6.1+build2-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H