Your submission was sent successfully! Close

CVE-2021-23953

Published: 26 January 2021

If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Priority

Medium

CVSS 3 base score: 4.3

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (85.0+build1-0ubuntu0.18.04.1)
focal
Released (85.0+build1-0ubuntu0.20.04.1)
groovy
Released (85.0+build1-0ubuntu0.20.10.1)
hirsute
Released (85.0+build1-0ubuntu1)
impish
Released (85.0+build1-0ubuntu1)
jammy
Released (85.0+build1-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (85)
xenial
Released (85.0+build1-0ubuntu0.16.04.1)
firefox-esr
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (78.7)
xenial Does not exist

mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy 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

focal Needs triage

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

impish Does not exist

jammy 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

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs68
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needs triage

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

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs78
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Needs triage

jammy Needs triage

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
focal
Released (1:78.7.1+build1-0ubuntu0.20.04.1)
groovy
Released (1:78.7.1+build1-0ubuntu0.20.10.4)
hirsute
Released (1:78.7.0+build2-0ubuntu1)
impish
Released (1:78.7.0+build2-0ubuntu1)
jammy
Released (1:78.7.0+build2-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (78.7)
xenial Needed