CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-38505
https://notcve.org/view.php?id=CVE-2021-38505
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 Firefox for Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. • https://bugzilla.mozilla.org/show_bug.cgi?id=1730194 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 https://www.mozilla.org/security/advisories/mfsa2021-50 • 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
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 usuario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1731779 https://www.mozilla.org/security/advisories/mfsa2021-48 https://www.mozilla.org/security/advisories/mfsa2021-49 https://www.mozilla.org/security/advisories/mfsa2021-50 •
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
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 estos bugs mostraban evidencias de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1606864%2C1712671%2C1730048%2C1735152 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html 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 https://www.mozilla.org/security/advisories/mfsa2021-50 https:/ • 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
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 anteriores a 93, Thunderbird versiones anteriores a 91.3 y Firefox ESR versiones anteriores a 91.3 The Mozilla Foundation Security Advisory describes this flaw as: 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. • https://bugzilla.mozilla.org/show_bug.cgi?id=1667102 https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://www.debian.org/security/2021/dsa-5026 https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-43 https://www.mozilla.org/security/advisories/mfsa2021-49 https://www.mozilla.org/security/advisories/mfsa2021-50 https://access.redhat.com/security • CWE-416: Use After Free •
CVSS: 6.1EPSS: 0%CPEs: 6EXPL: 0CVE-2021-43543 – Mozilla: Bypass of CSP sandbox directive when embedding
https://notcve.org/view.php?id=CVE-2021-43543
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Los documentos cargados con la directiva CSP sandbox podrían escapar de la restricción de scripts del sandbox al insertar contenido adicional. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 91.4.0, Firefox ESR versiones anteriores a 91.4.0 y Firefox versiones anteriores a 95 • https://bugzilla.mozilla.org/show_bug.cgi?id=1738418 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/mfsa2021-52 https://www.mozilla.org/security/advisories/mfsa2021-53 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •