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CVE-2020-12415

Published: 1 July 2020

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
eoan Ignored
(end of life)
trusty Does not exist

focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
xenial Ignored
(end of standard support, was needs-triage)
jammy Not vulnerable
(1:78.4.3+build1-0ubuntu1)
kinetic Not vulnerable
(1:78.4.3+build1-0ubuntu1)
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
groovy Not vulnerable
(1:78.3.2+build1-0ubuntu1)
hirsute Not vulnerable
(1:78.4.3+build1-0ubuntu1)
impish Not vulnerable
(1:78.4.3+build1-0ubuntu1)
lunar Not vulnerable
(1:78.4.3+build1-0ubuntu1)
upstream
Released (78)
mantic Not vulnerable
(1:78.4.3+build1-0ubuntu1)
mozjs52
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

impish Does not exist

lunar Does not exist

mantic Does not exist

mozjs68
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
jammy Does not exist

kinetic Does not exist

bionic Does not exist

eoan Does not exist

focal Needs triage

hirsute Does not exist

impish Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

hirsute Does not exist

groovy Does not exist

jammy Does not exist

kinetic Does not exist

impish Does not exist

lunar Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Ignored
(end of life)
groovy Does not exist

jammy Does not exist

kinetic Does not exist

focal Does not exist

hirsute Does not exist

impish 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
focal
Released (78.0.1+build1-0ubuntu0.20.04.1)
groovy
Released (78.0.1+build1-0ubuntu1)
jammy
Released (78.0.1+build1-0ubuntu1)
kinetic
Released (78.0.1+build1-0ubuntu1)
bionic
Released (78.0.1+build1-0ubuntu0.18.04.1)
eoan
Released (78.0.1+build1-0ubuntu0.19.10.1)
hirsute
Released (78.0.1+build1-0ubuntu1)
impish
Released (78.0.1+build1-0ubuntu1)
lunar
Released (78.0.1+build1-0ubuntu1)
trusty Does not exist

upstream
Released (78)
xenial
Released (78.0.1+build1-0ubuntu0.16.04.1)
mantic
Released (78.0.1+build1-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N