CVSS: 8.8EPSS: 1%CPEs: 3EXPL: 1CVE-2021-29980 – Mozilla: Uninitialized memory in a canvas object could have led to memory corruption
https://notcve.org/view.php?id=CVE-2021-29980
Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Una memoria no inicializada en un objeto canvas podría haber causado una función free() incorrecta, conllevando a una corrupción de la memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 78.13, Thunderbird versiones anteriores a 91, Firefox ESR versiones anteriores a 78.13 y Firefox versiones anteriores a 91. • https://bugzilla.mozilla.org/show_bug.cgi?id=1722204 https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.mozilla.org/security/advisories/mfsa2021-33 https://www.mozilla.org/security/advisories/mfsa2021-34 https://www.mozilla.org/security/advisories/mfsa2021-35 https://www.mozilla.org/security/advisories/mfsa2021-36 https://access.redhat.com/security/cve/CVE-2021-29980 https://bugzilla.redhat.com/show_bug.cgi?id=1992421 • CWE-908: Use of Uninitialized Resource CWE-909: Missing Initialization of Resource •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-29989 – Mozilla: Memory safety bugs fixed in Thunderbird 78.13
https://notcve.org/view.php?id=CVE-2021-29989
Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. 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 Thunderbird < 78.13, Firefox ESR < 78.13, and Firefox < 91. Los desarrolladores de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox 90 y Firefox ESR 78.12. Algunos de estos bugs mostraron evidencias de corrupción de la memoria y presumimos que con esfuerzo suficiente algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1662676%2C1666184%2C1719178%2C1719998%2C1720568 https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.mozilla.org/security/advisories/mfsa2021-33 https://www.mozilla.org/security/advisories/mfsa2021-34 https://www.mozilla.org/security/advisories/mfsa2021-35 https://access.redhat.com/security/cve/CVE-2021-29989 https://bugzilla.redhat.com/show_bug.cgi?id=1992423 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 1CVE-2021-29985 – Mozilla: Use-after-free media channels
https://notcve.org/view.php?id=CVE-2021-29985
A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Una vulnerabilidad de uso de la memoria previamente liberada en los canales multimedia podría haber conllevado a una corrupción de la memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 78.13, Thunderbird versiones anteriores a 91, Firefox ESR versiones anteriores a 78.13, y Firefox versiones anteriores a 91. • https://bugzilla.mozilla.org/show_bug.cgi?id=1722083 https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.mozilla.org/security/advisories/mfsa2021-33 https://www.mozilla.org/security/advisories/mfsa2021-34 https://www.mozilla.org/security/advisories/mfsa2021-35 https://www.mozilla.org/security/advisories/mfsa2021-36 https://access.redhat.com/security/cve/CVE-2021-29985 https://bugzilla.redhat.com/show_bug.cgi?id=1992422 • CWE-416: Use After Free •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-29971
https://notcve.org/view.php?id=CVE-2021-29971
If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90. Si un usuario ha concedido un permiso a una página web y ha guardado esa concesión, cualquier página web que se ejecute en el mismo host -independientemente del esquema o del puerto- recibirá ese permiso. • https://bugzilla.mozilla.org/show_bug.cgi?id=1713638 https://www.mozilla.org/security/advisories/mfsa2021-28 • CWE-281: Improper Preservation of Permissions •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1CVE-2021-29972
https://notcve.org/view.php?id=CVE-2021-29972
A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90. Se ha encontrado una vulnerabilidad de uso de memoria previamente liberada por medio de pruebas, y se ha detectado una librería Cairo desactualizada. La actualización de la biblioteca resolvió el problema, y puede haber corregido también otras vulnerabilidades de seguridad desconocidas. • https://bugzilla.mozilla.org/show_bug.cgi?id=1696816 https://security.gentoo.org/glsa/202202-03 https://www.mozilla.org/security/advisories/mfsa2021-28 • CWE-416: Use After Free •