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CVE-2020-26955

Published: 9 December 2020

When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original and subsequent request were in private and non-private browsing modes. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 83.

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
firefox
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(Android only)
focal Not vulnerable
(Android only)
groovy Not vulnerable
(Android only)
hirsute Not vulnerable
(Android only)
trusty Does not exist

upstream
Released (83)
xenial Not vulnerable
(Android only)
impish Not vulnerable
(Android only)
jammy Not vulnerable
(Android only)
kinetic Not vulnerable
(Android only)
lunar Not vulnerable
(Android only)
mantic Not vulnerable
(Android only)
mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

mozjs52
Launchpad, Ubuntu, Debian
upstream Needs triage

bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
trusty Does not exist

xenial Does not exist

hirsute Does not exist

jammy Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

mozjs60
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream Needs triage

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

xenial Does not exist

jammy Does not exist

impish Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

mozjs68
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream Needs triage

bionic Does not exist

focal Needs triage

groovy Ignored
(end of life)
xenial Does not exist

jammy Does not exist

hirsute Does not exist

impish Does not exist

kinetic Does not exist

lunar 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