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 •
CVSS: 6.1EPSS: 0%CPEs: 3EXPL: 0CVE-2020-26978 – Mozilla: Internal network hosts could have been probed by a malicious webpage
https://notcve.org/view.php?id=CVE-2020-26978
Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. Usando técnicas que se basaron en la investigación de slipstream, una página web maliciosa podría haber expuesto tanto los hosts de una red interna como los servicios que se ejecutan en la máquina local del usuario. Esta vulnerabilidad afecta a Firefox versiones anteriores a 84, Thunderbird versiones anteriores a 78,6 y Firefox ESR versiones anteriores a 78,6 The Mozilla Foundation Security Advisory describes this flaw as: Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. • https://bugzilla.mozilla.org/show_bug.cgi?id=1677047 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-2020-26978 https://bugzilla.redhat.com/show_bug.cgi?id=1908025 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2020-35113 – Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6
https://notcve.org/view.php?id=CVE-2020-35113
Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5. 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 < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. Los desarrolladores de Mozilla reportaron bugs de seguridad de la memoria presentes en Firefox versión 83 y Firefox versión ESR 78.5. Algunos de estos bugs mostraron evidencia de corrupción de la memoria y suponemos que con un suficiente esfuerzo algunos de ellos podrían haberse explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1664831%2C1673589 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-2020-35113 https://bugzilla.redhat.com/show_bug.cgi?id=1908029 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •