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CVE-2022-40956

Published: 28 September 2022

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Notes

AuthorNote
mdeslaur
starting with Ubuntu 22.04, the firefox package is just a script
that installs the Firefox snap
Priority

Low

CVSS 3 base score: 6.1

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic
Released (105.0+build2-0ubuntu0.18.04.1)
focal
Released (105.0+build2-0ubuntu0.20.04.1)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
trusty Ignored
(out of standard support)
upstream
Released (105)
xenial Needs triage

thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:102.4.2+build2-0ubuntu0.18.04.1)
focal
Released (1:102.4.2+build2-0ubuntu0.20.04.1)
jammy
Released (1:102.4.2+build2-0ubuntu0.22.04.1)
kinetic Not vulnerable
(1:102.3.0+build1-0ubuntu1)
trusty Ignored
(out of standard support)
upstream
Released (102.3)
xenial Needs triage