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CVSS: 4.3EPSS: 0%CPEs: 5EXPL: 0

25 Feb 2021 — If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8. Si la Política de Seguridad de Contenido bloqueaba la navegación de tramas, el destino completo de un redireccionamiento servido en la trama se reportaba en el informe de... • https://bugzilla.mozilla.org/show_bug.cgi?id=1687342 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-209: Generation of Error Message Containing Sensitive Information •

CVSS: 4.3EPSS: 0%CPEs: 5EXPL: 0

25 Feb 2021 — As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thund... • https://bugzilla.mozilla.org/show_bug.cgi?id=1542194 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0

25 Feb 2021 — When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8. Cuando se intenta cargar un recurso de origen cruzado en un contexto de audio y video, puede haber resultado un error de decodificación, y el contenido de ese error puede haber divulgado información sobre el recurso. Esta vulnerabilidad... • https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 • CWE-209: Generation of Error Message Containing Sensitive Information •

CVSS: 8.8EPSS: 0%CPEs: 5EXPL: 0

25 Feb 2021 — Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 < 86, Thunderbird < 78.8, and Firefox ESR < 78.8. Los desarrolladores de Mozilla reportaron bugs de seguridad de la memoria presentes en Firefox versión 85 y Firefox ESR versión 78.7. Algunos de estos bugs mostraron evidenc... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=786797%2C1682928%2C1687391%2C1687597 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

CVSS: 9.8EPSS: 1%CPEs: 7EXPL: 0

22 Oct 2020 — Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 < 78.4, Firefox < 82, and Thunderbird < 78.4. Los desarrolladores de Mozilla y los miembros de la comunidad informaron bugs de seguridad de la memoria presentes en Firefox versión 81 y Firefox ESR versi... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-416: Use After Free CWE-787: Out-of-bounds Write •

CVSS: 8.8EPSS: 1%CPEs: 7EXPL: 0

24 Sep 2020 — Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. Los desarrolladores de Mozilla reportaron unos bugs de seguridad de la memoria presentes en Firefox versión 80 y Firefox ESR versión 78.2. Algunos de estos bugs han mostrado... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-416: Use After Free •

CVSS: 6.1EPSS: 1%CPEs: 7EXPL: 0

24 Sep 2020 — Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. Firefox a veces ejecutaba el manejador de carga para elementos SVG que el saneador DOM decidió eliminar, resultando en que el JavaScript sea ejecutado después de pegar los datos controlados por el atacante en un eleme... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVSS: 6.1EPSS: 0%CPEs: 7EXPL: 0

24 Sep 2020 — By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. Al explotar una vulnerabilidad de Redireccionamiento Abierto en un sitio web, un atacante podría haber falsificado el sitio que es mostrado en el cuadro de diálo... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 8.8EPSS: 0%CPEs: 7EXPL: 0

24 Sep 2020 — When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. Al volver a recorrer las capas gráficas mientras se desplaza, es posible que un iterador pueda convertirse en no válido, resultando en un potencial uso de la memoria ... • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html • CWE-416: Use After Free •

CVSS: 9.8EPSS: 5%CPEs: 10EXPL: 1

06 May 2020 — A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Podría presentarse un desbordamiento del búfer cuando se analizan y comprueban fragmentos SCTP en WebRTC. Esto podría haber provocado una corrupción en la memoria y un bloqueo potencialmente explotable. • https://packetstorm.news/files/id/158480 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •