CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-38505
https://notcve.org/view.php?id=CVE-2021-38505
08 Dec 2021 — Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios. Applications that wish to prevent copied data from being recorded in Cloud History must use specific clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefo... • https://bugzilla.mozilla.org/show_bug.cgi?id=1730194 • CWE-668: Exposure of Resource to Wrong Sphere •
CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 0CVE-2021-38510
https://notcve.org/view.php?id=CVE-2021-38510
08 Dec 2021 — The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. La advertencia de archivo ejecutable no se presentaba cuando se descargaban archivos .inetloc, que, debido a un fallo en Mac OS, pueden ejecutar comandos en el ordenador de un us... • https://bugzilla.mozilla.org/show_bug.cgi?id=1731779 •
CVSS: 6.1EPSS: 0%CPEs: 2EXPL: 1CVE-2021-43530
https://notcve.org/view.php?id=CVE-2021-43530
08 Dec 2021 — A Universal XSS vulnerability was present in Firefox for Android resulting from improper sanitization when processing a URL scanned from a QR code. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94. Una vulnerabilidad de tipo XSS universal estaba presente en Firefox para Android como resultado de un saneo inapropiado cuando se procesa una URL escaneada desde un código QR. • https://github.com/hfh86/CVE-2021-43530-UXSS-On-QRcode-Reader- • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0CVE-2021-43531
https://notcve.org/view.php?id=CVE-2021-43531
08 Dec 2021 — When a user loaded a Web Extensions context menu, the Web Extension could access the post-redirect URL of the element clicked. If the Web Extension lacked the WebRequest permission for the hosts involved in the redirect, this would be a same-origin-violation leaking data the Web Extension should have access to. This was fixed to provide the pre-redirect URL. This is related to CVE-2021-43532 but in the context of Web Extensions. This vulnerability affects Firefox < 94. • https://bugzilla.mozilla.org/show_bug.cgi?id=1659155 • CWE-346: Origin Validation Error •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-43532
https://notcve.org/view.php?id=CVE-2021-43532
08 Dec 2021 — The 'Copy Image Link' context menu action would copy the final image URL after redirects. By embedding an image that triggered authentication flows - in conjunction with a Content Security Policy that stopped a redirection chain in the middle - the final image URL could be one that contained an authentication token used to takeover a user account. If a website tricked a user into copy and pasting the image link back to the page, the page would be able to steal the authentication tokens. This was fixed by ma... • https://bugzilla.mozilla.org/show_bug.cgi?id=1719203 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0CVE-2021-43533
https://notcve.org/view.php?id=CVE-2021-43533
08 Dec 2021 — When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox < 94. Cuando eran analizados los nombres de dominio internacionalizados, a veces se eliminaban los bits altos de los caracteres de las URL, resultando en incoherencias que podían conllevar a una confusión para el usuario o ataques como el phishing. Esta vulnerabilidad afecta... • https://bugzilla.mozilla.org/show_bug.cgi?id=1724233 •
CVSS: 8.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-43534 – Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
https://notcve.org/view.php?id=CVE-2021-43534
08 Dec 2021 — Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. 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 < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. Los desarrolladores y miembros de la comunidad de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox 93 y Firefox ESR 91.2. Algunos de ... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1606864%2C1712671%2C1730048%2C1735152 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-43535 – Mozilla: Use-after-free in HTTP2 Session object
https://notcve.org/view.php?id=CVE-2021-43535
08 Dec 2021 — A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3. Podría haberse producido un uso de memoria previamente liberada cuando un objeto de sesión HTTP2 se liberaba en un hilo diferente, conllevando a una corrupción de memoria y un fallo potencialmente explotable. Esta vulnerabilidad afecta a Firefox versiones ante... • https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-43540 – Ubuntu Security Notice USN-5186-2
https://notcve.org/view.php?id=CVE-2021-43540
08 Dec 2021 — WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension. This vulnerability affects Firefox < 95. Las WebExtensions con los permisos correctos podían crear e instalar ServiceWorkers para sitios web de terceros que no habrían desinstalado con la extensión. Esta vulnerabilidad afecta a Firefox versiones anteriores a 95 USN-5186-1 fixed vulnerabilities in Firefox. The update introduced several min... • https://bugzilla.mozilla.org/show_bug.cgi?id=1636629 •
CVSS: 6.1EPSS: 0%CPEs: 2EXPL: 0CVE-2021-43544
https://notcve.org/view.php?id=CVE-2021-43544
08 Dec 2021 — When receiving a URL through a SEND intent, Firefox would have searched for the text, but subsequent usages of the address bar might have caused the URL to load unintentionally, which could lead to XSS and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95. Cuando se recibía una URL mediante una intención de SEND, Firefox habría buscado el texto, pero los usos posteriores de la barra de direcciones podrían haber cau... • https://bugzilla.mozilla.org/show_bug.cgi?id=1739934 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •