CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-29947
https://notcve.org/view.php?id=CVE-2021-29947
Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88. Unos desarrolladores y miembros de la comunidad de Mozilla han reportado bugs de seguridad de memoria presentes en Firefox versión 87. Algunos de estos bugs mostraban evidencias de corrupción de memoria y presumimos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C1696886%2C1700091 https://www.mozilla.org/security/advisories/mfsa2021-16 • CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23997
https://notcve.org/view.php?id=CVE-2021-23997
Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88. Debido a conversiones inesperadas de tipos de datos, podría haberse producido un uso de memoria previamente liberada al interactuar con la caché de fuentes. Presumimos que con suficiente esfuerzo esto podría haber sido explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1701942 https://www.mozilla.org/security/advisories/mfsa2021-16 • CWE-681: Incorrect Conversion between Numeric Types •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23998 – Mozilla: Secure Lock icon could have been spoofed
https://notcve.org/view.php?id=CVE-2021-23998
Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Mediante navegaciones complicadas con nuevas ventanas, una página HTTP podría haber heredado un icono de bloqueo seguro de una página HTTPS. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.10, Thunderbird versiones anteriores a 78.10 y Firefox versiones anteriores a 88 • https://bugzilla.mozilla.org/show_bug.cgi?id=1667456 https://www.mozilla.org/security/advisories/mfsa2021-14 https://www.mozilla.org/security/advisories/mfsa2021-15 https://www.mozilla.org/security/advisories/mfsa2021-16 https://access.redhat.com/security/cve/CVE-2021-23998 https://bugzilla.redhat.com/show_bug.cgi?id=1951366 • CWE-281: Improper Preservation of Permissions CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23995 – Mozilla: Use-after-free in Responsive Design Mode
https://notcve.org/view.php?id=CVE-2021-23995
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Cuando se habilitó el Modo de Diseño Responsivo, se usaron referencias a objetos que fueron liberados previamente. Presumimos que con suficiente esfuerzo esto podría haber sido explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1699835 https://www.mozilla.org/security/advisories/mfsa2021-14 https://www.mozilla.org/security/advisories/mfsa2021-15 https://www.mozilla.org/security/advisories/mfsa2021-16 https://access.redhat.com/security/cve/CVE-2021-23995 https://bugzilla.redhat.com/show_bug.cgi?id=1951365 • CWE-416: Use After Free CWE-672: Operation on a Resource after Expiration or Release •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-24002 – Mozilla: Arbitrary FTP command execution on FTP servers using an encoded URL
https://notcve.org/view.php?id=CVE-2021-24002
When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Cuando un usuario hacía clic en una URL de FTP conteniendo caracteres de nueva línea codificados (%0A y %0D), las nuevas líneas se interpretaban como tales y permitían que comandos arbitrarios fueran enviados al servidor FTP. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.10, Thunderbird versiones anteriores a 78.10 y Firefox versiones anteriores a 88 • https://bugzilla.mozilla.org/show_bug.cgi?id=1702374 https://www.mozilla.org/security/advisories/mfsa2021-14 https://www.mozilla.org/security/advisories/mfsa2021-15 https://www.mozilla.org/security/advisories/mfsa2021-16 https://access.redhat.com/security/cve/CVE-2021-24002 https://bugzilla.redhat.com/show_bug.cgi?id=1951369 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') •