CVE-2024-3859

En las versiones de 32 bits había desbordamientos de enteros que conducían a una lectura fuera de los límites que potencialmente podría ser provocada por una fuente OpenType con formato incorrecto. Esta vulnerabilidad afecta a Firefox < 125 y Firefox ESR < 115.10.

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font.

USN-6747-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. 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. Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service. Gary Kwong discovered that Firefox did not properly manage memory when running garbage collection during realm initialization. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Lukas Bernhard discovered that Firefox did not properly manage memory during JIT optimizations, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. Nan Wang discovered that Firefox did not properly manage memory during WASM garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Various other issues were also addressed.