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CVE-2020-6800

Published: 11 February 2020

Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine
Priority

Medium

CVSS 3 base score: 8.8

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (73.0+build3-0ubuntu0.18.04.1)
eoan
Released (73.0+build3-0ubuntu0.19.10.1)
focal
Released (73.0+build3-0ubuntu1)
groovy
Released (73.0+build3-0ubuntu1)
hirsute
Released (73.0+build3-0ubuntu1)
impish
Released (73.0+build3-0ubuntu1)
jammy
Released (73.0+build3-0ubuntu1)
kinetic
Released (73.0+build3-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (73.0)
xenial
Released (73.0.1+build1-0ubuntu0.16.04.1)
firefox-esr
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

eoan Ignored
(reached end-of-life)
focal Needs triage

groovy Ignored
(reached end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs60
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Ignored
(reached end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:68.7.0+build1-0ubuntu0.18.04.1)
eoan
Released (1:68.7.0+build1-0ubuntu0.19.10.1)
focal
Released (1:68.5.0+build1-0ubuntu1)
groovy
Released (1:68.5.0+build1-0ubuntu1)
hirsute
Released (1:68.5.0+build1-0ubuntu1)
impish
Released (1:68.5.0+build1-0ubuntu1)
jammy
Released (1:68.5.0+build1-0ubuntu1)
kinetic
Released (1:68.5.0+build1-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (68.5.0)
xenial
Released (1:68.7.0+build1-0ubuntu0.16.04.2)