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CVSS: 8.1EPSS: 0%CPEs: 2EXPL: 0

If a Thunderbird user replied to a crafted HTML email containing a <code>meta</code> tag, with the <code>meta</code> tag having the <code>http-equiv="refresh"</code> attribute, and the content attribute specifying an URL, then Thunderbird started a network request to that URL, regardless of the configuration to block remote content. In combination with certain other HTML elements and attributes in the email, it was possible to execute JavaScript code included in the message in the context of the message compose document. The JavaScript code was able to perform actions including, but probably not limited to, read and modify the contents of the message compose document, including the quoted original message, which could potentially contain the decrypted plaintext of encrypted data in the crafted email. The contents could then be transmitted to the network, either to the URL specified in the META refresh tag, or to a different URL, as the JavaScript code could modify the URL specified in the document. This bug doesn't affect users who have changed the default Message Body display setting to 'simple html' or 'plain text'. • https://bugzilla.mozilla.org/show_bug.cgi?id=1784838 https://www.mozilla.org/security/advisories/mfsa2022-38 https://www.mozilla.org/security/advisories/mfsa2022-39 https://access.redhat.com/security/cve/CVE-2022-3033 https://bugzilla.redhat.com/show_bug.cgi?id=2123256 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0

During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. Durante la navegación por iframe, ciertas páginas no tenían su FeaturePolicy completamente inicializada, lo que provocó una omisión que filtró permisos del dispositivo a subdocumentos que no eran de confianza. Esta vulnerabilidad afecta a Firefox ESR &lt; 102.3, Thunderbird &lt; 102.3 y Firefox &lt; 105. A flaw was found in Mozilla. • https://bugzilla.mozilla.org/show_bug.cgi?id=1782211 https://www.mozilla.org/security/advisories/mfsa2022-40 https://www.mozilla.org/security/advisories/mfsa2022-41 https://www.mozilla.org/security/advisories/mfsa2022-42 https://access.redhat.com/security/cve/CVE-2022-40959 https://bugzilla.redhat.com/show_bug.cgi?id=2128792 • CWE-922: Insecure Storage of Sensitive Information CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 6.1EPSS: 0%CPEs: 2EXPL: 0

When receiving an HTML email that specified to load an <code>iframe</code> element from a remote location, a request to the remote document was sent. However, Thunderbird didn't display the document. This vulnerability affects Thunderbird < 102.2.1 and Thunderbird < 91.13.1. Al recibir un correo electrónico HTML que especificaba cargar un elemento <code>iframe</code> desde una ubicación remota, se envió una solicitud al documento remoto. Sin embargo, Thunderbird no mostró el documento. • https://bugzilla.mozilla.org/show_bug.cgi?id=1745751 https://www.mozilla.org/security/advisories/mfsa2022-38 https://www.mozilla.org/security/advisories/mfsa2022-39 https://access.redhat.com/security/cve/CVE-2022-3034 https://bugzilla.redhat.com/show_bug.cgi?id=2123257 • CWE-449: The UI Performs the Wrong Action CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0

Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. 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 ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. Los desarrolladores de Mozilla, Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson y Mozilla Fuzzing Team informaron sobre errores de seguridad de la memoria presentes en Firefox 104 y Firefox ESR 102.2. Algunos de estos errores mostraron evidencia de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1776655%2C1777574%2C1784835%2C1785109%2C1786502%2C1789440 https://www.mozilla.org/security/advisories/mfsa2022-40 https://www.mozilla.org/security/advisories/mfsa2022-41 https://www.mozilla.org/security/advisories/mfsa2022-42 https://access.redhat.com/security/cve/CVE-2022-40962 https://bugzilla.redhat.com/show_bug.cgi?id=2128797 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

CVSS: 6.1EPSS: 0%CPEs: 3EXPL: 0

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. Al inyectar un elemento base HTML, algunas solicitudes ignorarían la configuración de uri base del CSP y aceptarían la base del elemento inyectado. Esta vulnerabilidad afecta a Firefox ESR &lt; 102.3, Thunderbird &lt; 102.3 y Firefox &lt; 105. A flaw was found in Mozilla. • https://bugzilla.mozilla.org/show_bug.cgi?id=1770094 https://www.mozilla.org/security/advisories/mfsa2022-40 https://www.mozilla.org/security/advisories/mfsa2022-41 https://www.mozilla.org/security/advisories/mfsa2022-42 https://access.redhat.com/security/cve/CVE-2022-40956 https://bugzilla.redhat.com/show_bug.cgi?id=2128795 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-1021: Improper Restriction of Rendered UI Layers or Frames •