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

16 Nov 2022 — If the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certificate, and then deleted the exception, Firefox would have kept the connection alive, making it seem like the certificate was still trusted. This vulnerability affects Firefox < 107. Si el usuario agregó una excepción de seguridad para un certificado TLS no válido, abrió una conexión TLS en curso con un servidor que usaba ese certificado y luego eliminó la excepción, Fire... • https://bugzilla.mozilla.org/show_bug.cgi?id=1716082 • CWE-295: Improper Certificate Validation •

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

16 Nov 2022 — Mozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.4. 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 ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. The Mozilla Foundation Security Advisory describes this flaw as: Mozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs pre... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1767920%2C1789808%2C1794061 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

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: 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: 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: 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 •

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 — Use tables inside of an iframe, an attacker could have caused iframe contents to be rendered outside the boundaries of the iframe, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107. Al utilizar tablas dentro de un iframe, un atacante podría haber provocado que el contenido del iframe se representara fuera de los límites del iframe, lo que provocaría una posible confusión del usuario o ataques de suplantación de i... • https://bugzilla.mozilla.org/show_bug.cgi?id=1792643 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •