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CVE-2020-6831

Published: 6 May 2020

A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
firefox-esr
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

xenial Does not exist

hirsute Does not exist

impish Does not exist

groovy Does not exist

lunar Does not exist

jammy Does not exist

kinetic Does not exist

upstream
Released (68.8.0esr-1)
mantic Does not exist

firefox
Launchpad, Ubuntu, Debian
hirsute
Released (76.0+build2-0ubuntu1)
impish
Released (76.0+build2-0ubuntu1)
focal
Released (76.0+build2-0ubuntu0.20.04.1)
groovy
Released (76.0+build2-0ubuntu1)
jammy
Released (76.0+build2-0ubuntu1)
kinetic
Released (76.0+build2-0ubuntu1)
lunar
Released (76.0+build2-0ubuntu1)
bionic
Released (76.0+build2-0ubuntu0.18.04.1)
eoan
Released (76.0+build2-0ubuntu0.19.10.1)
trusty Does not exist

upstream
Released (76.0)
xenial
Released (76.0+build2-0ubuntu0.16.04.1)
mantic
Released (76.0+build2-0ubuntu1)
thunderbird
Launchpad, Ubuntu, Debian
hirsute
Released (1:68.8.0+build2-0ubuntu1)
focal
Released (1:68.8.0+build2-0ubuntu0.20.04.2)
groovy
Released (1:68.8.0+build2-0ubuntu1)
kinetic
Released (1:68.8.0+build2-0ubuntu1)
lunar
Released (1:68.8.0+build2-0ubuntu1)
bionic
Released (1:68.8.0+build2-0ubuntu0.18.04.2)
eoan
Released (1:68.8.0+build2-0ubuntu0.19.10.2)
impish
Released (1:68.8.0+build2-0ubuntu1)
jammy
Released (1:68.8.0+build2-0ubuntu1)
trusty Does not exist

upstream
Released (68.8.0)
xenial
Released (1:68.8.0+build2-0ubuntu0.16.04.2)
mantic
Released (1:68.8.0+build2-0ubuntu1)
chromium-browser
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(code not present)
impish Not vulnerable
(code not present)
groovy Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
bionic
Released (81.0.4044.138-0ubuntu0.18.04.1)
eoan Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
trusty Does not exist

upstream
Released
xenial
Released (81.0.4044.138-0ubuntu0.16.04.1)
mantic Not vulnerable
(code not present)
mozjs38
Launchpad, Ubuntu, Debian
hirsute Does not exist

impish Does not exist

groovy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

eoan Does not exist

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
hirsute Does not exist

groovy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

eoan Ignored
(end of life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs68
Launchpad, Ubuntu, Debian
hirsute Does not exist

groovy Ignored
(end of life)
kinetic Does not exist

lunar Does not exist

bionic Does not exist

eoan Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

impish Does not exist

jammy 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 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H