CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 1CVE-2021-23999 – Mozilla: Blob URLs may have been granted additional privileges
https://notcve.org/view.php?id=CVE-2021-23999
26 Apr 2021 — If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Si una URL Blob se cargó mediante alguna interacción inusual del usuario, podría haber sido cargada por el Principal del Sistema y conceder privilegios adicionales que no deberían concederse al contenido web. Esta vulnerabilidad afect... • https://bugzilla.mozilla.org/show_bug.cgi?id=1691153 • CWE-269: Improper Privilege Management CWE-281: Improper Preservation of Permissions CWE-697: Incorrect Comparison •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-23998 – Mozilla: Secure Lock icon could have been spoofed
https://notcve.org/view.php?id=CVE-2021-23998
26 Apr 2021 — Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Mediante navegaciones complicadas con nuevas ventanas, una página HTTP podría haber heredado un icono de bloqueo seguro de una página HTTPS. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.10, Thunderbird versiones anteriores a 78.10 y Firefox versiones anteriores a 88 Multiple secu... • https://bugzilla.mozilla.org/show_bug.cgi?id=1667456 • CWE-281: Improper Preservation of Permissions CWE-345: Insufficient Verification of Data Authenticity •
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: 1%CPEs: 3EXPL: 0CVE-2021-23995 – Mozilla: Use-after-free in Responsive Design Mode
https://notcve.org/view.php?id=CVE-2021-23995
26 Apr 2021 — When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Cuando se habilitó el Modo de Diseño Responsivo, se usaron referencias a objetos que fueron liberados previamente. Presumimos que con suficiente esfuerzo esto podría haber sido explotado para ejecutar código arbitrario. • https://bugzilla.mozilla.org/show_bug.cgi?id=1699835 • CWE-416: Use After Free CWE-672: Operation on a Resource after Expiration or Release •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23992 – Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user
https://notcve.org/view.php?id=CVE-2021-23992
14 Apr 2021 — Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1. Thunderbird no comprueba si el ID de usuario asociado a una clave OpenPGP presenta u... • https://bugzilla.mozilla.org/show_bug.cgi?id=1666236 • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 6.8EPSS: 0%CPEs: 1EXPL: 1CVE-2021-23991 – Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key
https://notcve.org/view.php?id=CVE-2021-23991
14 Apr 2021 — If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1. Si un usuario de Thunderbird ha importado previamente la clave OpenPGP de Alic... • https://bugzilla.mozilla.org/show_bug.cgi?id=1673240 • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-23993 – Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key
https://notcve.org/view.php?id=CVE-2021-23993
14 Apr 2021 — An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self signature, and the Thunderbird user imports the crafted key, then Thunderbird may try to use the invalid subkey, but the RNP library rejects it from being used, causing encryption to fail. This vulnerability affects Thunderbird < 78.9.1. Un atacante puede llevar a cabo un ataque DoS para impedir a un usuario de enviar un c... • https://bugzilla.mozilla.org/show_bug.cgi?id=1666360 • CWE-347: Improper Verification of Cryptographic Signature •
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: 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: 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 •