CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23953 – Mozilla: Cross-origin information leakage via redirected PDF requests
https://notcve.org/view.php?id=CVE-2021-23953
If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. Si un usuario hace clic en un PDF diseñado específicamente, el lector de PDF podría confundirse y filtrar información de origen cruzado, cuando dicha información es servida como datos fragmentados. Esta vulnerabilidad afecta a Firefox versiones anteriores a 85, Thunderbird versiones anteriores a 78,7 y Firefox ESR versiones anteriores a 78,7 The Mozilla Foundation Security Advisory describes this flaw as: If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. • https://bugzilla.mozilla.org/show_bug.cgi?id=1683940 https://www.mozilla.org/security/advisories/mfsa2021-03 https://www.mozilla.org/security/advisories/mfsa2021-04 https://www.mozilla.org/security/advisories/mfsa2021-05 https://access.redhat.com/security/cve/CVE-2021-23953 https://bugzilla.redhat.com/show_bug.cgi?id=1920646 • CWE-829: Inclusion of Functionality from Untrusted Control Sphere •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23954 – Mozilla: Type confusion when using logical assignment operators in JavaScript switch statements
https://notcve.org/view.php?id=CVE-2021-23954
Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. Usando los nuevos operadores de asignación lógica en una declaración de cambio de JavaScript podría haber causado una confusión de tipos, conllevando a una corrupción de la memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox versiones anteriores a 85, Thunderbird versiones anteriores a 78,7 y Firefox ESR versiones anteriores a 78,7 The Mozilla Foundation Security Advisory describes this flaw as: Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. • https://bugzilla.mozilla.org/show_bug.cgi?id=1684020 https://www.mozilla.org/security/advisories/mfsa2021-03 https://www.mozilla.org/security/advisories/mfsa2021-04 https://www.mozilla.org/security/advisories/mfsa2021-05 https://access.redhat.com/security/cve/CVE-2021-23954 https://bugzilla.redhat.com/show_bug.cgi?id=1920648 • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 0CVE-2020-35112
https://notcve.org/view.php?id=CVE-2020-35112
If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. Si un usuario descargó un archivo que carece de una extensión en Windows y luego "Open"-ed desde el panel de descargas, si había un archivo ejecutable en el directorio de descargas con el mismo nombre pero con una extensión ejecutable (como .bat o .exe) ese ejecutable habría sido iniciado en su lugar. • https://bugzilla.mozilla.org/show_bug.cgi?id=1661365 https://www.mozilla.org/security/advisories/mfsa2020-54 https://www.mozilla.org/security/advisories/mfsa2020-55 https://www.mozilla.org/security/advisories/mfsa2020-56 •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2020-26973 – Mozilla: CSS Sanitizer performed incorrect sanitization
https://notcve.org/view.php?id=CVE-2020-26973
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. Determinadas entradas hacia el CSS Sanitizer lo confundieron, resultando en una eliminación de componentes incorrectos. Esto podría haber sido usado como una omisión de saneo. • https://bugzilla.mozilla.org/show_bug.cgi?id=1680084 https://www.mozilla.org/security/advisories/mfsa2020-54 https://www.mozilla.org/security/advisories/mfsa2020-55 https://www.mozilla.org/security/advisories/mfsa2020-56 https://access.redhat.com/security/cve/CVE-2020-26973 https://bugzilla.redhat.com/show_bug.cgi?id=1908023 • CWE-20: Improper Input Validation •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2020-26974 – Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free
https://notcve.org/view.php?id=CVE-2020-26974
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. Cuando flex-basis fue usada en un contenedor de tabla, un objeto StyleGenericFlexBasis podría haberse convertido incorrectamente en el tipo equivocado. Esto resultó en uso de la memoria previamente liberada de la pila, una corrupción de la memoria y un bloqueo potencialmente explotable. • https://bugzilla.mozilla.org/show_bug.cgi?id=1681022 https://www.mozilla.org/security/advisories/mfsa2020-54 https://www.mozilla.org/security/advisories/mfsa2020-55 https://www.mozilla.org/security/advisories/mfsa2020-56 https://access.redhat.com/security/cve/CVE-2020-26974 https://bugzilla.redhat.com/show_bug.cgi?id=1908024 • CWE-416: Use After Free CWE-787: Out-of-bounds Write •