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CVE-2020-15658

Published: 29 July 2020

The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
hirsute
Released (80.0.1+build1-0ubuntu1)
impish
Released (80.0.1+build1-0ubuntu1)
focal
Released (79.0+build1-0ubuntu0.20.04.1)
jammy
Released (80.0.1+build1-0ubuntu1)
kinetic
Released (80.0.1+build1-0ubuntu1)
lunar
Released (80.0.1+build1-0ubuntu1)
bionic
Released (79.0+build1-0ubuntu0.18.04.1)
groovy
Released (80.0.1+build1-0ubuntu1)
trusty Does not exist

upstream
Released (79)
xenial
Released (79.0+build1-0ubuntu0.16.04.2)
mantic
Released (80.0.1+build1-0ubuntu1)
mozjs38
Launchpad, Ubuntu, Debian
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

thunderbird
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(1:78.4.3+build1-0ubuntu1)
impish Not vulnerable
(1:78.4.3+build1-0ubuntu1)
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)
lunar Not vulnerable
(1:78.4.3+build1-0ubuntu1)
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
groovy Not vulnerable
(1:78.3.2+build1-0ubuntu1)
trusty Does not exist

upstream
Released (78.1)
mantic Not vulnerable
(1:78.4.3+build1-0ubuntu1)
mozjs52
Launchpad, Ubuntu, Debian
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

focal Does not exist

groovy 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

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

focal Needs triage

groovy Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

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