CVSS: 8.8EPSS: 1%CPEs: 3EXPL: 0CVE-2020-12387 – Mozilla: Use-after-free during worker shutdown
https://notcve.org/view.php?id=CVE-2020-12387
A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Una condición de carrera cuando se ejecuta el código shutdown para Web Worker conllevo a una vulnerabilidad de uso de la memoria previamente liberada. Esto resultó en un bloqueo potencialmente explotable. • https://bugzilla.mozilla.org/show_bug.cgi?id=1545345 https://security.gentoo.org/glsa/202005-03 https://security.gentoo.org/glsa/202005-04 https://usn.ubuntu.com/4373-1 https://www.mozilla.org/security/advisories/mfsa2020-16 https://www.mozilla.org/security/advisories/mfsa2020-17 https://www.mozilla.org/security/advisories/mfsa2020-18 https://access.redhat.com/security/cve/CVE-2020-12387 https://bugzilla.redhat.com/show_bug.cgi?id=1831761 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 10.0EPSS: 0%CPEs: 7EXPL: 0CVE-2020-12395 – Mozilla: Memory safety bugs fixed in Firefox 76 and Firefox ESR 68.8
https://notcve.org/view.php?id=CVE-2020-12395
Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Los desarrolladores de Mozilla y los miembros de la comunidad informaron bugs de seguridad de la memoria presentes en Firefox versión 75 y Firefox ESR versión 68.7. Algunos de estos errores mostraron evidencia de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de estos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508 https://security.gentoo.org/glsa/202005-03 https://security.gentoo.org/glsa/202005-04 https://usn.ubuntu.com/4373-1 https://www.mozilla.org/security/advisories/mfsa2020-16 https://www.mozilla.org/security/advisories/mfsa2020-17 https://www.mozilla.org/security/advisories/mfsa2020-18 https://access.redhat.com/security/cve/CVE-2020-12395 https://bugzilla.redhat.com/show • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 2%CPEs: 10EXPL: 0CVE-2020-6831 – usrsctp: Buffer overflow in AUTH chunk input validation
https://notcve.org/view.php?id=CVE-2020-6831
A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Podría presentarse un desbordamiento del búfer cuando se analizan y comprueban fragmentos SCTP en WebRTC. Esto podría haber provocado una corrupción en la memoria y un bloqueo potencialmente explotable. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html https://bugzilla.mozilla.org/show_bug.cgi?id=1632241 https://security.gentoo.org/glsa/202005-03 https://security.gentoo.org/glsa/202005-04 https://usn.ubuntu.com/4373-1 https://www.debian.org/security/2020/dsa-4714 https://www.mozilla.org/security/advisories/mfsa2020-16 https://www.mozilla.org/security/advisories/mfsa2020-17 https:&# • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2020-6822 – Mozilla: Out of bounds write in GMPDecodeData when processing large images
https://notcve.org/view.php?id=CVE-2020-6822
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75. En las compilaciones de 32 bits, podría haber ocurrido una escritura fuera de límites al procesar una imagen de más de 4 GB en (code)GMPDecodeData(/code). Es posible que con suficiente esfuerzo esto podría haber sido explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1544181 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2020-12 https://www.mozilla.org/security/advisories/mfsa2020-13 https://www.mozilla.org/security/advisories/mfsa2020-14 https://access.redhat.com/security/cve/CVE-2020-6822 https://bugzilla.redhat.com/show_bug.cgi?id=1821676 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-6821 – Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method
https://notcve.org/view.php?id=CVE-2020-6821
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75. Cuando se lee desde áreas parcial o completamente fuera del recurso fuente con el método <code>copyTexSubImage</code> de WebGL, la especificación requiere que los valores devueltos sean cero. Anteriormente, esta memoria no fue inicializada, conllevando a una divulgación de datos potencialmente confidenciales. • https://bugzilla.mozilla.org/show_bug.cgi?id=1625404 https://usn.ubuntu.com/4335-1 https://www.mozilla.org/security/advisories/mfsa2020-12 https://www.mozilla.org/security/advisories/mfsa2020-13 https://www.mozilla.org/security/advisories/mfsa2020-14 https://access.redhat.com/security/cve/CVE-2020-6821 https://bugzilla.redhat.com/show_bug.cgi?id=1821674 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-908: Use of Uninitialized Resource •