CVE-2023-5176

Errores de seguridad de la memoria presentes en Firefox 117, Firefox ESR 115.2 y Thunderbird 115.2. Algunos de estos errores mostraron evidencia de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 118, Firefox ESR < 115.3 y Thunderbird < 115.3.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: Memory safety bugs are present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs showed evidence of memory corruption, and we presume that with enough effort, some of these could have been exploited to run arbitrary code.

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, bypass security restrictions, cross-site tracing, or execute arbitrary code. Andrew McCreight discovered that Thunderbird did not properly manage during the worker lifecycle. An attacker could potentially exploit this issue to cause a denial of service.