CVE-2022-22740

Ciertos objetos de solicitud de red se liberaron demasiado pronto al liberar un identificador de solicitud de red. Esto podría haber dado lugar a un use-after-free que provocaría un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR < 91.5, Firefox < 96 y Thunderbird < 91.5.

The Mozilla Foundation Security Advisory describes this flaw as: Certain network request objects were freed too early when releasing a network request handle. This could have led to a use-after-free issue, causing a potentially exploitable crash.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, trick a user into accepting unwanted permissions, conduct header splitting attacks, conduct spoofing attacks, bypass security restrictions, confuse the user, or execute arbitrary code.