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CVE-2022-40958

Published: 28 September 2022

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. 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

Medium

CVSS 3 base score: 6.5

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