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CVE-2021-29988

Published: 11 August 2021

Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

Priority

Medium

CVSS 3 base score: 8.8

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (91.0+build2-0ubuntu0.18.04.1)
focal
Released (91.0+build2-0ubuntu0.20.04.1)
hirsute
Released (91.0+build2-0ubuntu0.21.04.1)
impish
Released (91.0+build2-0ubuntu1)
jammy
Released (91.0+build2-0ubuntu1)
trusty Does not exist

upstream
Released (91)
xenial Needed

mozjs38
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

hirsute Does not exist

impish Does not exist

jammy 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

hirsute Does not exist

impish Does not exist

jammy 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

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

jammy Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:78.13.0+build1-0ubuntu0.18.04.1)
focal
Released (1:78.13.0+build1-0ubuntu0.20.04.2)
hirsute
Released (1:78.13.0+build1-0ubuntu0.21.04.2)
impish
Released (1:78.13.0+build1-0ubuntu2)
jammy
Released (1:78.13.0+build1-0ubuntu2)
trusty Does not exist

upstream
Released (78.13)
xenial Needed