CVSS: 8.8EPSS: 0%CPEs: 5EXPL: 0CVE-2021-23978 – Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8
https://notcve.org/view.php?id=CVE-2021-23978
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 evidencia de corrupción de la memoria y suponemos que con esfuerzo suficiente algunos de ellos podrían haber sido explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=786797%2C1682928%2C1687391%2C1687597 https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html https://security.gentoo.org/glsa/202104-09 https://security.gentoo.org/glsa/202104-10 https://www.debian.org/security/2021/dsa-4866 https://www.mozilla.org/security/advisories/mfsa2021-07 https://www.mozilla.org/security/advisories/mfsa2021-08 https://www.mozilla.org/security/advisories/mfsa2021-09 https://access.redhat.com/security/cve& • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 1%CPEs: 5EXPL: 0CVE-2021-23973 – Mozilla: MediaError message property could have leaked information about cross-origin resources
https://notcve.org/view.php?id=CVE-2021-23973
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 afecta a Firefox versiones anteriores a 86, Thunderbird versiones anteriores a 78,8 y Firefox ESR versiones anteriores a 78,8 • https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html https://security.gentoo.org/glsa/202104-09 https://security.gentoo.org/glsa/202104-10 https://www.debian.org/security/2021/dsa-4866 https://www.mozilla.org/security/advisories/mfsa2021-07 https://www.mozilla.org/security/advisories/mfsa2021-08 https://www.mozilla.org/security/advisories/mfsa2021-09 https://access.redhat.com/security/cve/CVE-2021-23973 https:&# • CWE-209: Generation of Error Message Containing Sensitive Information •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1CVE-2021-23965
https://notcve.org/view.php?id=CVE-2021-23965
Mozilla developers reported memory safety bugs present in Firefox 84. 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 < 85. Los desarrolladores de Mozilla reportaron bugs de seguridad de la memoria presentes en Firefox versión 84. Algunos de estos bugs mostraron evidencia de corrupción de la memoria y suponemos que con esfuerzo suficiente algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1670378%2C1673555%2C1676812%2C1678582%2C1684497 https://www.mozilla.org/security/advisories/mfsa2021-03 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23958
https://notcve.org/view.php?id=CVE-2021-23958
The browser could have been confused into transferring a screen sharing state into another tab, which would leak unintended information. This vulnerability affects Firefox < 85. El navegador podría haber sido confundido en transferir un estado de pantalla compartida a otra pestaña, lo que filtraría información no deseada. Esta vulnerabilidad afecta a Firefox versiones anteriores a 85 • https://bugzilla.mozilla.org/show_bug.cgi?id=1642747 https://www.mozilla.org/security/advisories/mfsa2021-03 • CWE-668: Exposure of Resource to Wrong Sphere •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23955
https://notcve.org/view.php?id=CVE-2021-23955
The browser could have been confused into transferring a pointer lock state into another tab, which could have lead to clickjacking attacks. This vulnerability affects Firefox < 85. El navegador podría haber sido confundido al transferir un estado de bloqueo del puntero a otra pestaña, lo que podría haber conllevado a ataques de secuestro de clics. Esta vulnerabilidad afecta a Firefox versiones anteriores a 85 • https://bugzilla.mozilla.org/show_bug.cgi?id=1684837 https://www.mozilla.org/security/advisories/mfsa2021-03 • CWE-1021: Improper Restriction of Rendered UI Layers or Frames •