CVE-2022-40958 Information

Description

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.

Reference

https://www.mozilla.org/security/advisories/mfsa2022-42/ https://bugzilla.mozilla.org/show_bug.cgi?id=1779993 https://www.mozilla.org/security/advisories/mfsa2022-41/ https://www.mozilla.org/security/advisories/mfsa2022-40/