CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 0CVE-2019-11757 – Mozilla: Use-after-free when creating index updates in IndexedDB
https://notcve.org/view.php?id=CVE-2019-11757
When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2. Siguiendo la cadena de prototipos de valor, era posible retener una referencia a una configuración regional, eliminarla y, posteriormente, hacer referencia a ella. Esto resultó en un uso de la memoria previamente liberada y un bloqueo explotable potencialmente. • https://bugzilla.mozilla.org/show_bug.cgi?id=1577107 https://security.gentoo.org/glsa/202003-10 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2019-33 https://www.mozilla.org/security/advisories/mfsa2019-34 https://www.mozilla.org/security/advisories/mfsa2019-35 https://access.redhat.com/security/cve/CVE-2019-11757 https://bugzilla.redhat.com/show_bug.cgi?id=1764438 • CWE-416: Use After Free •
CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 1CVE-2019-11758 – Mozilla: Potentially exploitable crash due to 360 Total Security
https://notcve.org/view.php?id=CVE-2019-11758
Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.2, and Firefox ESR < 68.2. Philipp, miembro de la comunidad de Mozilla, reportó un bug de seguridad de la memoria presente en Firefox versión 68 cuando 360 Total Security fue instalado. Este bug mostró evidencia de corrupción de memoria en el motor de accesibilidad y suponemos que con un esfuerzo suficiente podría ser explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1536227 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2019-25 https://www.mozilla.org/security/advisories/mfsa2019-33 https://www.mozilla.org/security/advisories/mfsa2019-35 https://access.redhat.com/security/cve/CVE-2019-11758 https://bugzilla.redhat.com/show_bug.cgi?id=1764439 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 1%CPEs: 4EXPL: 0CVE-2019-11759 – Mozilla: Stack buffer overflow in HKDF output
https://notcve.org/view.php?id=CVE-2019-11759
An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2. Un atacante podría haber causado que 4 bytes de salida HMAC se escribieran más allá del final de un búfer almacenado en la pila. Esto podría ser usado por un atacante para ejecutar código arbitrario o, más probablemente, conllevar a un bloqueo. • https://bugzilla.mozilla.org/show_bug.cgi?id=1577953 https://security.gentoo.org/glsa/202003-10 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2019-33 https://www.mozilla.org/security/advisories/mfsa2019-34 https://www.mozilla.org/security/advisories/mfsa2019-35 https://access.redhat.com/security/cve/CVE-2019-11759 https://bugzilla.redhat.com/show_bug.cgi?id=1764440 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 0CVE-2019-11760 – Mozilla: Stack buffer overflow in WebRTC networking
https://notcve.org/view.php?id=CVE-2019-11760
A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a potentially exploitable crash in some instances. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2. Un búfer de pila de tamaño fijo podría desbordarse en nrappkit cuando realiza la señalización de WebRTC. Esto resultó en un bloqueo explotable potencialmente en algunos casos. • https://bugzilla.mozilla.org/show_bug.cgi?id=1577719 https://security.gentoo.org/glsa/202003-10 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2019-33 https://www.mozilla.org/security/advisories/mfsa2019-34 https://www.mozilla.org/security/advisories/mfsa2019-35 https://access.redhat.com/security/cve/CVE-2019-11760 https://bugzilla.redhat.com/show_bug.cgi?id=1764441 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 5.8EPSS: 0%CPEs: 4EXPL: 0CVE-2019-11761 – Mozilla: Unintended access to a privileged JSONView object
https://notcve.org/view.php?id=CVE-2019-11761
By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2. Mediante el uso de un formulario con un URI de datos, fue posible conseguir acceso al objeto JSONView privilegiado que había sido clonado en contenido. El impacto de exponer este objeto parece ser mínimo, sin embargo, fue una omisión de los mecanismos de defensa existentes en profundidad. • https://bugzilla.mozilla.org/show_bug.cgi?id=1561502 https://security.gentoo.org/glsa/202003-10 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2019-33 https://www.mozilla.org/security/advisories/mfsa2019-34 https://www.mozilla.org/security/advisories/mfsa2019-35 https://access.redhat.com/security/cve/CVE-2019-11761 https://bugzilla.redhat.com/show_bug.cgi?id=1764442 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-749: Exposed Dangerous Method or Function CWE-862: Missing Authorization •