CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-29945 – Mozilla: Incorrect size computation in WebAssembly JIT could lead to null-reads
https://notcve.org/view.php?id=CVE-2021-29945
26 Apr 2021 — The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. El JIT de WebAssembly podía calcular mal el tamaño de un tipo de retorno, lo que podía conllevar a una lectura nula y resultar en un bloqueo. • https://bugzilla.mozilla.org/show_bug.cgi?id=1700690 • CWE-476: NULL Pointer Dereference CWE-682: Incorrect Calculation •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23994 – Mozilla: Out of bound write due to lazy initialization
https://notcve.org/view.php?id=CVE-2021-23994
26 Apr 2021 — A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Un framebuffer de WebGL no se inicializaba con suficiente antelación, resultando en una corrupción de memoria y una escritura fuera de límites. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.10, Thunderbird versiones anteriores a 78.10 y Firefox versiones anteriores a 88 USN-4995-1 fixed vuln... • https://bugzilla.mozilla.org/show_bug.cgi?id=1699077 • CWE-787: Out-of-bounds Write CWE-909: Missing Initialization of Resource •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23988 – Gentoo Linux Security Advisory 202104-10
https://notcve.org/view.php?id=CVE-2021-23988
31 Mar 2021 — Mozilla developers reported memory safety bugs present in Firefox 86. 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 < 87. Los desarrolladores de Mozilla, reportaron bugs de seguridad de la memoria presentes en Firefox versión 86. Algunos de estos bugs mostraron evidencia de corrupción de la memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían ... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1684994%2C1686653 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23983 – Ubuntu Security Notice USN-4893-1
https://notcve.org/view.php?id=CVE-2021-23983
26 Mar 2021 — By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87. Al causar una transición en un nodo principal mediante la eliminación de una regla CSS, se podría haber aplicado una propiedad no válida para un marcador, resultando en una corrupción de la memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ... • https://bugzilla.mozilla.org/show_bug.cgi?id=1692684 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23986 – Ubuntu Security Notice USN-4893-1
https://notcve.org/view.php?id=CVE-2021-23986
26 Mar 2021 — A malicious extension with the 'search' permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentic... • https://bugzilla.mozilla.org/show_bug.cgi?id=1692623 • CWE-346: Origin Validation Error •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23985 – Ubuntu Security Notice USN-4893-1
https://notcve.org/view.php?id=CVE-2021-23985
26 Mar 2021 — If an attacker is able to alter specific about:config values (for example malware running on the user's computer), the Devtools remote debugging feature could have been enabled in a way that was unnoticable to the user. This would have allowed a remote attacker (able to make a direct network connection to the victim) to monitor the user's browsing activity and (plaintext) network traffic. This was addressed by providing a visual cue when Devtools has an open network socket. This vulnerability affects Firefo... • https://bugzilla.mozilla.org/show_bug.cgi?id=1659129 •
CVSS: 8.1EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23981 – Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read
https://notcve.org/view.php?id=CVE-2021-23981
25 Mar 2021 — A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. Una carga de textura de un Objeto de Búfer de Píxeles podría haber confundido el código WebGL para omitir el enlace del búfer usado para descomprimirlo, resultando en la corrupción de la memoria y una filtración o bl... • https://bugzilla.mozilla.org/show_bug.cgi?id=1692832 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23982 – Mozilla: Internal network hosts could have been probed by a malicious webpage
https://notcve.org/view.php?id=CVE-2021-23982
25 Mar 2021 — Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. Usando técnicas que se basaron en la investigación de slipstream, una página web maliciosa podría haber escaneado tanto los hosts de una red interna como los servicios que se ejecutan en la máquina local del usuar... • https://bugzilla.mozilla.org/show_bug.cgi?id=1677046 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-326: Inadequate Encryption Strength •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23984 – Mozilla: Malicious extensions could have spoofed popup information
https://notcve.org/view.php?id=CVE-2021-23984
25 Mar 2021 — A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. Una extensión maliciosa podría haber abierto una ventana emergente sin una barra de direcciones. • https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 • CWE-290: Authentication Bypass by Spoofing CWE-1021: Improper Restriction of Rendered UI Layers or Frames •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23987 – Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9
https://notcve.org/view.php?id=CVE-2021-23987
25 Mar 2021 — Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 < 78.9, Firefox < 87, and Thunderbird < 78.9. Los desarrolladores y miembros de la comunidad de Mozilla informaron de fallos de seguridad de memoria presentes en Firefox 86 y Firefox ESR 78.8. Algunos d... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1513519%2C1683439%2C1690169%2C1690718 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •