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CVSS: 7.5EPSS: 1%CPEs: 6EXPL: 0

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. En determinadas circunstancias, las funciones asíncronas podrían haber causado el fallo de una navegación pero exponiendo la URL de destino. 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 The Mozilla Foundation Security Advisory describes this flaw as: Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. • https://bugzilla.mozilla.org/show_bug.cgi?id=1730120 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-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 5.4EPSS: 0%CPEs: 6EXPL: 0

It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Se han podido recrear ataques anteriores de suplantación del cursor contra usuarios con un cursor nativo ampliado. 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=1737751 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-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 6.5EPSS: 1%CPEs: 6EXPL: 0

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Usando XMLHttpRequest, un atacante podría haber identificado aplicaciones instaladas sondeando los mensajes de error para cargar protocolos externos. 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=1723281 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-209: Generation of Error Message Containing Sensitive Information •

CVSS: 6.5EPSS: 0%CPEs: 6EXPL: 0

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Cuando son invocados manejadores de protocolo para protocolos externos, una URL de parámetro suministrada que contenía espacios no se escapaba correctamente. 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=1696685 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-428: Unquoted Search Path or Element •

CVSS: 8.8EPSS: 0%CPEs: 6EXPL: 0

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Un fallo en el registro correcto de la ubicación de los punteros vivos a través de las llamadas a instancias de wasm daba lugar a que una GC que ocurría dentro de la llamada no rastreara esos punteros vivos. Esto podría haber conllevado a un uso de memoria previamente liberada causando un bloqueo potencialmente explotable. • https://bugzilla.mozilla.org/show_bug.cgi?id=1739683 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-416: Use After Free •