Affected: Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird

In multiple cases browser prompts could have been obscured by popups controlled by content. These could have led to potential user confusion and spoofing attacks. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

Affected: Ubuntu:18.04:LTS: firefox, Ubuntu:20.04:LTS: firefox

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2023-32205, CVE-2023-32207, CVE-2023-32210, CVE-2023-32211, CVE-2023-32212, CVE-2023-32213, CVE-2023-32215, CVE-2023-32216)

Irvan Kurniawan discovered that Firefox did not properly manage memory when using RLBox Expat driver. An attacker could potentially exploits this issue to cause a denial of service. (CVE-2023-32206)

Anne van Kesteren discovered that Firefox did not properly validate the import() call in service workers. An attacker could potentially exploits this to obtain sensitive information. (CVE-2023-32208)

Sam Ezeh discovered that Firefox did not properly handle certain favicon image files. If a user were tricked into opening a malicicous favicon file, an attacker could cause a denial of service. (CVE-2023-32209)