CVE-2019-9793

Published: 20 March 2019

A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Priority

Medium

CVSS 3 base score: 5.9

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
Upstream
Released (66.0)
Ubuntu 21.04 (Hirsute Hippo)
Released (66.0+build3-0ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (66.0+build3-0ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (66.0+build3-0ubuntu0.18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (66.0+build3-0ubuntu0.16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [66.0.1+build1-0ubuntu0.14.04.1])
mozjs38
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

mozjs52
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

mozjs60
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

thunderbird
Launchpad, Ubuntu, Debian
Upstream
Released (60.6)
Ubuntu 21.04 (Hirsute Hippo)
Released (60.6.1+build2-0ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (60.6.1+build2-0ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:60.6.1+build2-0ubuntu0.18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1:60.6.1+build2-0ubuntu0.16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [1:60.6.1+build2-0ubuntu0.14.04.1])