CVSS: 9.3EPSS: 91%CPEs: 3EXPL: 2CVE-2020-26950 – Mozilla: Write side effects in MCallGetProperty opcode not accounted for
https://notcve.org/view.php?id=CVE-2020-26950
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2. En determinadas circunstancias, el opcode MCallGetProperty puede ser emitido con suposiciones no cumplidas, resultando en una condición de uso de la memoria previamente liberada explotable. Esta vulnerabilidad afecta a Firefox versiones anteriores a 82.0.3, Firefox ESR versiones anteriores a 78.4.1, y Thunderbird versiones anteriores a 78.4.2 • http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html https://bugzilla.mozilla.org/show_bug.cgi?id=1675905 https://www.mozilla.org/security/advisories/mfsa2020-49 https://access.redhat.com/security/cve/CVE-2020-26950 https://bugzilla.redhat.com/show_bug.cgi?id=1896306 https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/#CVE-2020-26950 https://www.sentinelone.com/labs/firefox-jit-use-after-frees-exploiting-cve-2020-26950 • CWE-416: Use After Free •
CVSS: 9.8EPSS: 1%CPEs: 7EXPL: 0CVE-2020-15683 – Mozilla: Memory safety bugs fixed in Firefox 82 and Firefox ESR 78.4
https://notcve.org/view.php?id=CVE-2020-15683
Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 ESR < 78.4, Firefox < 82, and Thunderbird < 78.4. Los desarrolladores de Mozilla y los miembros de la comunidad informaron bugs de seguridad de la memoria presentes en Firefox versión 81 y Firefox ESR versión 78.3. Algunos de estos bugs mostraron evidencia de corrupción de la memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html https://bugzilla.mozilla.org/buglist.cgi?bug_id=1576843%2C1656987%2C1660954%2C1662760%2C1663439%2C1666140 https://lists.debian.org/debian-lts-announce/2020/10/msg00027.html https://security.gentoo.org/glsa/202010 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-416: Use After Free CWE-787: Out-of-bounds Write •
CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 0CVE-2020-15646 – Mozilla: Automatic account setup leaks Microsoft Exchange login credentials
https://notcve.org/view.php?id=CVE-2020-15646
If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attacker sends a crafted response, then Thunderbird sends username and password over https to a server controlled by the attacker. This vulnerability affects Thunderbird < 68.10.0. Si un atacante intercepta el intento inicial de Thunderbird de llevar a cabo los ajustes automáticos de la cuenta mediante el mecanismo de detección automática de Microsoft Exchange, y el atacante envía una respuesta diseñada, entonces Thunderbird envía el nombre de usuario y contraseña por medio de https hacia un servidor controlado por el atacante. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.10.0 • https://bugzilla.mozilla.org/show_bug.cgi?id=1606610 https://www.mozilla.org/security/advisories/mfsa2020-26 https://access.redhat.com/security/cve/CVE-2020-15646 https://bugzilla.redhat.com/show_bug.cgi?id=1854036 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 8.8EPSS: 0%CPEs: 4EXPL: 0CVE-2020-15670
https://notcve.org/view.php?id=CVE-2020-15670
Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80. Los desarrolladores de Mozilla reportaron de unos bugs de seguridad de la memoria presentes en Firefox para Android versión 79. Algunos de estos bugs han mostrado evidencia de corrupción de la memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957 https://www.mozilla.org/security/advisories/mfsa2020-36 https://www.mozilla.org/security/advisories/mfsa2020-38 https://www.mozilla.org/security/advisories/mfsa2020-39 https://www.mozilla.org/security/advisories/mfsa2020-41 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free CWE-617: Reachable Assertion •
CVSS: 6.1EPSS: 0%CPEs: 7EXPL: 0CVE-2020-15676 – Mozilla: XSS when pasting attacker-controlled data into a contenteditable element
https://notcve.org/view.php?id=CVE-2020-15676
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. Firefox a veces ejecutaba el manejador de carga para elementos SVG que el saneador DOM decidió eliminar, resultando en que el JavaScript sea ejecutado después de pegar los datos controlados por el atacante en un elemento satisfactorio. Esta vulnerabilidad afecta a Firefox versiones anteriores a 81, Thunderbird versiones anteriores a 78.3, y Firefox ESR versiones anteriores a 78.3 The Mozilla Foundation Security Advisory describes this flaw as: Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html https://bugzilla.mozilla.org/show_bug.cgi?id=1646140 https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html https://security.gentoo.org/glsa/202010-02 https://www.debian.org/security/2020/dsa-4770 https://www.mozilla.org/security/advisories/mfsa2020-42 https://www.mozilla.org/security/advisories/mfsa2020-43 https://www.mozil • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •