CVSS: 6.1EPSS: 1%CPEs: 6EXPL: 0CVE-2021-38508 – Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing
https://notcve.org/view.php?id=CVE-2021-38508
By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. Al mostrar un mensaje de comprobación del formulario en la ubicación correcta al mismo tiempo que una solicitud de permiso (como para la geolocalización), el mensaje de comprobación podría haber ocultado la solicitud, resultando en que el usuario podría ser engañado para conceder el permiso. Esta vulnerabilidad afecta a Firefox versiones anteriores a 94, Thunderbird versiones anteriores a 91.3 y Firefox ESR versiones anteriores a 91.3 • https://bugzilla.mozilla.org/show_bug.cgi?id=1366818 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.debian.org/security/2021/dsa-5026 https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •
CVSS: 6.1EPSS: 0%CPEs: 6EXPL: 0CVE-2021-38509 – Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain
https://notcve.org/view.php?id=CVE-2021-38509
Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. Debido a una secuencia inusual de eventos controlados por el atacante, un diálogo Javascript alert() con contenido arbitrario (aunque sin estilo) podría mostrarse encima de una página web no controlada de la elección del atacante. Esta vulnerabilidad afecta a Firefox versiones anteriores a 94, Thunderbird versiones anteriores a 91.3 y Firefox ESR versiones anteriores a 91.3 • https://bugzilla.mozilla.org/show_bug.cgi?id=1718571 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.debian.org/security/2021/dsa-5026 https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •
CVSS: 10.0EPSS: 0%CPEs: 6EXPL: 0CVE-2021-38503 – Mozilla: iframe sandbox rules did not apply to XSLT stylesheets
https://notcve.org/view.php?id=CVE-2021-38503
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. Las reglas del sandbox de iframe no se aplicaban correctamente a las hojas de estilo XSLT, permitiendo a un iframe omitir restricciones como la ejecución de scripts o la navegación por el marco de nivel superior. Esta vulnerabilidad afecta a Firefox versiones anteriores a 94, Thunderbird versiones anteriores a 91.3 y Firefox ESR versiones anteriores a 91.3 The Mozilla Foundation Security Advisory describes this flaw as: The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. • https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.debian.org/security/2021/dsa-5026 https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 • CWE-732: Incorrect Permission Assignment for Critical Resource CWE-863: Incorrect Authorization •
CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-38506 – Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning
https://notcve.org/view.php?id=CVE-2021-38506
Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. Mediante de una serie de navegaciones, Firefox podría haber entrado en modo de pantalla completa sin notificación o advertencia al usuario. Esto podría conllevar a ataques de suplantación de identidad en la Interfaz de Usuario del navegador, incluido el phishing. • https://bugzilla.mozilla.org/show_bug.cgi?id=1730750 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.debian.org/security/2021/dsa-5026 https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 1CVE-2021-40985
https://notcve.org/view.php?id=CVE-2021-40985
A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp. Una vulnerabilidad de desbordamiento del búfer under-read en htmldoc versiones anteriores a 1.9.12, permite a atacantes causar una denegación de servicio por medio de una imagen BMP diseñada a la función image_load_bmp. • https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43 https://github.com/michaelrsweet/htmldoc/issues/444 https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html • CWE-125: Out-of-bounds Read •