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CVSS: 6.4EPSS: 0%CPEs: 3EXPL: 0

17 Nov 2022 — If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. Si se especifica un cursor de mouse personalizado en CSS, bajo ciertas circunstancias el cursor podría haberse dibujado sobre la interfaz de usuario del navegador, lo que podría generar confusión en el usuario o ataques de suplantación d... • https://bugzilla.mozilla.org/show_bug.cgi?id=1795815 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Nov 2022 — If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. The Mozilla Foundation Security Advisory describes this flaw as: If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references t... • https://bugzilla.mozilla.org/show_bug.cgi?id=1791975 • CWE-416: Use After Free •

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

16 Nov 2022 — If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exploitable crash. This vulnerability affects Firefox < 107. Si un atacante cargó una fuente usando <code>FontFace()</code> en un trabajador en segundo plano, podría haberse producido un use after free, lo que habría provocado un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox &lt; 107. Multiple security issues were discovered in Firefox. • https://bugzilla.mozilla.org/show_bug.cgi?id=1793314 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Nov 2022 — When a ServiceWorker intercepted a request with FetchEvent, the origin of the request was lost after the ServiceWorker took ownership of it. This had the effect of negating SameSite cookie protections. This was addressed in the spec and then in browsers. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. Cuando un ServiceWorker interceptó una solicitud con FetchEvent, el origen de la solicitud se perdió después de que ServiceWorker tomó posesión... • https://bugzilla.mozilla.org/show_bug.cgi?id=1658869 • CWE-862: Missing Authorization CWE-1275: Sensitive Cookie with Improper SameSite Attribute •

CVSS: 6.4EPSS: 0%CPEs: 3EXPL: 0

16 Nov 2022 — Cross-Site Tracing occurs when a server will echo a request back via the Trace method, allowing an XSS attack to access to authorization headers and cookies inaccessible to JavaScript (such as cookies protected by HTTPOnly). To mitigate this attack, browsers placed limits on fetch() and XMLHttpRequest; however some webservers have implemented non-standard headers such as X-Http-Method-Override that override the HTTP method, and made this attack possible again. Thunderbird has appli... • https://bugzilla.mozilla.org/show_bug.cgi?id=1790311 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVSS: 10.0EPSS: 0%CPEs: 6EXPL: 0

16 Nov 2022 — When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer.
*This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). Windows is unaffected.*. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. Al resolver un enlace simbólico como file:///proc/self/fd/1, se puede producir un mensaje de error d... • https://bugzilla.mozilla.org/show_bug.cgi?id=1791029 • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 6.4EPSS: 0%CPEs: 2EXPL: 0

16 Nov 2022 — Using the <code>S.browser_fallback_url parameter</code> parameter, an attacker could redirect a user to a URL and cause SameSite=Strict cookies to be sent.<br>*This issue only affects Firefox for Android. Other operating systems are not affected.*. This vulnerability affects Firefox < 107. Multiple security issues were discovered in Firefox. • https://bugzilla.mozilla.org/show_bug.cgi?id=1791201 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

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

16 Nov 2022 — When downloading an HTML file, if the title of the page was formatted as a filename with a malicious extension, Firefox may have saved the file with that extension, leading to possible system compromise if the downloaded file was later ran. This vulnerability affects Firefox < 107. 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, spoof the contents of the addressbar,... • https://bugzilla.mozilla.org/show_bug.cgi?id=1793551 • CWE-434: Unrestricted Upload of File with Dangerous Type •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Nov 2022 — Keyboard events reference strings like "KeyA" that were at fixed, known, and widely-spread addresses. Cache-based timing attacks such as Prime+Probe could have possibly figured out which keys were being pressed. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. Los eventos de teclado hacen referencia a cadenas como "KeyA" que estaban en direcciones fijas, conocidas y ampliamente distribuidas. Los ataques de sincronización basados en caché, como Prime+Probe, posiblemente... • https://bugzilla.mozilla.org/show_bug.cgi?id=1793676 • CWE-203: Observable Discrepancy •

CVSS: 5.0EPSS: 0%CPEs: 1EXPL: 0

16 Nov 2022 — Service Workers did not detect Private Browsing Mode correctly in all cases, which could have led to Service Workers being written to disk for websites visited in Private Browsing Mode. This would not have persisted them in a state where they would run again, but it would have leaked Private Browsing Mode details to disk. This vulnerability affects Firefox < 107. Los Service Workers no detectaron correctamente el modo de navegación privada en todos los casos, lo que podría haber provocado que los Service Wo... • https://bugzilla.mozilla.org/show_bug.cgi?id=1794508 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •