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CVE-2020-35113

Published: 15 December 2020

Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

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
firefox
Launchpad, Ubuntu, Debian
bionic
Released (84.0+build3-0ubuntu0.18.04.1)
focal
Released (84.0+build3-0ubuntu0.20.04.1)
groovy
Released (84.0+build3-0ubuntu0.20.10.1)
xenial
Released (84.0+build3-0ubuntu0.16.04.1)
jammy
Released (84.0+build3-0ubuntu2)
hirsute
Released (84.0+build3-0ubuntu2)
impish
Released (84.0+build3-0ubuntu2)
kinetic
Released (84.0+build3-0ubuntu2)
lunar
Released (84.0+build3-0ubuntu2)
trusty Does not exist

upstream
Released (84)
mantic
Released (84.0+build3-0ubuntu2)
thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
groovy
Released (1:78.6.1+build1-0ubuntu0.20.10.1)
hirsute
Released (1:78.6.0+build1-0ubuntu1)
upstream
Released (78.6)
focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
xenial Ignored
(end of standard support, was needs-triage)
jammy
Released (1:78.6.0+build1-0ubuntu1)
impish
Released (1:78.6.0+build1-0ubuntu1)
kinetic
Released (1:78.6.0+build1-0ubuntu1)
lunar
Released (1:78.6.0+build1-0ubuntu1)
trusty Does not exist

mantic
Released (1:78.6.0+build1-0ubuntu1)
mozjs78
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

impish Ignored
(end of life)
bionic Does not exist

focal Does not exist

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

lunar Ignored
(end of life, was needs-triage)
mozjs38
Launchpad, Ubuntu, Debian
jammy Does not exist

bionic Needs triage

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
jammy Does not exist

bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
jammy Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs68
Launchpad, Ubuntu, Debian
jammy Does not exist

bionic Does not exist

focal Needs triage

groovy Ignored
(end of life)
hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar 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 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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H