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CVSS: 9.8EPSS: 0%CPEs: 18EXPL: 0

JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8. Un spray JIT que apunta a asm.js combinado con un heap spray permite la omisión de las protecciones ASLR y DEP, lo que conduce a ataques de corrupción de memoria. La vulnerabilidad afecta a Firefox en versiones anteriores a la 52, Firefox ESR en versiones anteriores a la 45.8, Thunderbird en versiones anteriores a la 52 y Thunderbird en versiones anteriores a la 45.8. • http://rhn.redhat.com/errata/RHSA-2017-0459.html http://rhn.redhat.com/errata/RHSA-2017-0461.html http://rhn.redhat.com/errata/RHSA-2017-0498.html http://www.securityfocus.com/bid/96654 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1334933 https://security.gentoo.org/glsa/201705-06 https://security.gentoo.org/glsa/201705-07 https://www.debian.org/security/2017/dsa-3805 https://www.debian.org/security/2017/dsa-3832 https • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 1

If a malicious site uses the "view-source:" protocol in a series within a single hyperlink, it can trigger a non-exploitable browser crash when the hyperlink is selected. This was fixed by no longer making "view-source:" linkable. This vulnerability affects Firefox < 52 and Thunderbird < 52. Si un sitio malicioso emplea el protocolo "view-source:" en una serie en un único hipervínculo, puede desencadenar un cierre inesperado no explotable del navegador cuando se selecciona el hipervínculo. Esto se solucionó haciendo que "view-source:" ya no fuese enlazable. • http://www.securityfocus.com/bid/96692 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1295002 https://www.mozilla.org/security/advisories/mfsa2017-05 https://www.mozilla.org/security/advisories/mfsa2017-09 • CWE-20: Improper Input Validation •

CVSS: 9.8EPSS: 91%CPEs: 21EXPL: 2

A use-after-free error can occur when manipulating ranges in selections with one node inside a native anonymous tree and one node outside of it. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8. Puede ocurrir un uso de memoria previamente liberada cuando se manipulan rangos en selecciones con un nodo en un árbol nativo anónimo y un nodo fuera de él. Esto resulta en un cierre inesperado potencialmente explotable. • https://www.exploit-db.com/exploits/41660 http://rhn.redhat.com/errata/RHSA-2017-0459.html http://rhn.redhat.com/errata/RHSA-2017-0461.html http://rhn.redhat.com/errata/RHSA-2017-0498.html http://www.securityfocus.com/bid/96664 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1340138 https://security.gentoo.org/glsa/201705-06 https://security.gentoo.org/glsa/201705-07 https://www.debian.org/security/2017/dsa-3805 https:/& • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 1

If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52. Si un sitio web malicioso desencadena repetidamente un mensaje de autenticación modal, la interfaz de usuario del navegador dejará de responder y será necesario cerrarlo a través del sistema operativo. Esto es un ataque de denegación de servicio (DoS). • http://www.securityfocus.com/bid/96692 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1312243 https://www.mozilla.org/security/advisories/mfsa2017-05 https://www.mozilla.org/security/advisories/mfsa2017-09 •

CVSS: 9.8EPSS: 0%CPEs: 2EXPL: 0

When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 52 and Thunderbird < 52. Al añadir un rango a un objeto en el DOM, es posible utilizar "addRange" para añadir el rango a un objeto root incorrecto. Esto desencadena un uso de memoria previamente liberada, lo que resulta en un cierre inesperado potencialmente explotable. • http://www.securityfocus.com/bid/96691 http://www.securitytracker.com/id/1037966 https://bugzilla.mozilla.org/show_bug.cgi?id=1340186 https://www.mozilla.org/security/advisories/mfsa2017-05 https://www.mozilla.org/security/advisories/mfsa2017-09 • CWE-416: Use After Free •