CVSS: 9.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-12411
https://notcve.org/view.php?id=CVE-2020-12411
Mozilla developers reported memory safety bugs present in Firefox 76. 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. This vulnerability affects Firefox < 77. Los desarrolladores de Mozilla reportaron bugs de seguridad de la memoria presentes en Firefox versión 76. Algunos de estos bugs mostraron evidencia de corrupción de la memoria y presumimos que con suficiente esfuerzo algunos de estos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1620972%2C1625333 https://www.mozilla.org/security/advisories/mfsa2020-20 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-12408
https://notcve.org/view.php?id=CVE-2020-12408
When browsing a document hosted on an IP address, an attacker could insert certain characters to flip domain and path information in the address bar. This vulnerability affects Firefox < 77. Al explorar un documento alojado en una dirección IP, un atacante podría insertar determinados caracteres para voltear una información de dominio y ruta en la barra de direcciones. Esta vulnerabilidad afecta a Firefox versiones anteriores a 77 • https://bugzilla.mozilla.org/show_bug.cgi?id=1623888 https://www.mozilla.org/security/advisories/mfsa2020-20 •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-12407
https://notcve.org/view.php?id=CVE-2020-12407
Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox < 77. El desarrollador de Mozilla, Nicolas Silva, detectó que cuando usaba WebRender, Firefox, bajo determinadas condiciones, filtra memoria arbitraria de la GPU hacia la pantalla visible. El contenido de la memoria filtrada era visible para el usuario, pero no era observable desde el contenido web. • https://bugzilla.mozilla.org/show_bug.cgi?id=1637112 https://www.mozilla.org/security/advisories/mfsa2020-20 • CWE-125: Out-of-bounds Read •
CVSS: 9.3EPSS: 0%CPEs: 7EXPL: 0CVE-2020-12406 – Mozilla: JavaScript Type confusion with NativeTypes
https://notcve.org/view.php?id=CVE-2020-12406
Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9. El desarrollador de Mozilla, Iain Ireland, detectó una falta de un tipo comprobación durante la eliminación de objetos sin caja, resultando en un bloqueo. Presumimos que con un esfuerzo suficiente podría ser explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1639590 https://usn.ubuntu.com/4421-1 https://www.mozilla.org/security/advisories/mfsa2020-20 https://www.mozilla.org/security/advisories/mfsa2020-21 https://www.mozilla.org/security/advisories/mfsa2020-22 https://access.redhat.com/security/cve/CVE-2020-12406 https://bugzilla.redhat.com/show_bug.cgi?id=1843312 • CWE-345: Insufficient Verification of Data Authenticity CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 1CVE-2020-12405 – Mozilla: Use-after-free in SharedWorkerService
https://notcve.org/view.php?id=CVE-2020-12405
When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9. Cuando se navega una página maliciosa, podría ocurrir una condición de carrera en nuestro SharedWorkerService y conllevar a un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.9.0, Firefox versiones anteriores a 77 y Firefox ESR versiones anteriores a 68.9 The Mozilla Foundation Security Advisory describes this flaw as: When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. • https://bugzilla.mozilla.org/show_bug.cgi?id=1631618 https://usn.ubuntu.com/4421-1 https://www.mozilla.org/security/advisories/mfsa2020-20 https://www.mozilla.org/security/advisories/mfsa2020-21 https://www.mozilla.org/security/advisories/mfsa2020-22 https://access.redhat.com/security/cve/CVE-2020-12405 https://bugzilla.redhat.com/show_bug.cgi?id=1843313 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •