RLSA-2026:70642

RLSA-2026:70642 · Important: thunderbird security update

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Esta página muestra una selección de datos de las fuentes. Consulte los avisos enlazados para ver la descripción completa y las versiones afectadas.

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es): * firefox: thunderbird: Privilege escalation in the DOM: Workers component (CVE-2026-16365) * firefox: thunderbird: Sandbox escape in the Remote Settings Client component (CVE-2026-75874) * firefox: Sandbox escape due to use-after-free in the DOM: Security component (CVE-2026-84121) * firefox: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40 (CVE-2026-84145) * firefox: Sandbox escape due to use-after-free in the DOM: Navigation component (CVE-2026-84119) * firefox: Use-after-free in the Audio/Video component (CVE-2026-84120) * firefox: Privilege escalation due to invalid pointer in the Graphics component (CVE-2026-84131) * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-84124) * firefox: Use-after-free in the Audio/Video component (CVE-2026-84122) * firefox: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15 (CVE-2026-84143) * thunderbird: Uninitialized memory in MIME parsing (CVE-2026-84639) * thunderbird: Information disclosure due to malicious IMAP server response (CVE-2026-84641) * thunderbird: One byte overflow read in mail parser (CVE-2026-84640) * firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-92024) * firefox: thunderbird: Mitigation bypass in the Remote Settings Client component (CVE-2026-92019) * firefox: thunderbird: Use-after-free in the Networking component (CVE-2026-92026) * firefox: thunderbird: Information disclosure in the Graphics: ImageLib component (CVE-2026-92031) * firefox: thunderbird: Sandbox escape due to invalid pointer in the Graphics component (CVE-2026-92032) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92010) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92006) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92011) * firefox: thunderbird: Use-after-free in the DOM: Streams component (CVE-2026-92027) * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-92028) * firefox: thunderbird: Privilege escalation in the WebExtensions component (CVE-2026-92015) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92013) * firefox: thunderbird: Use-after-free in the Disability Access APIs component (CVE-2026-92016) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92012) * firefox: thunderbird: Use-after-free in the DOM: HTML Parser component (CVE-2026-92022) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics component (CVE-2026-92014) * firefox: thunderbird: Sandbox escape in the DOM: Core & HTML component (CVE-2026-92018) * firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-92021) * firefox: thunderbird: Use-after-free in the Audio/Video: Web Codecs component (CVE-2026-92005) * firefox: thunderbird: Privilege escalation in the DOM: Service Workers component (CVE-2026-92017) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92009) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-92020) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92008) * firefox: thunderbird: Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-92030) * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-92007) * firefox: thunderbird: Use-after-free in the DOM: Navigation component (CVE-2026-92025) * firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-92029) * firefox: thunderbird: Use-after-free in the XML component (CVE-2026-92023) * thunderbird: Out-of-bounds read in IMAP response parser (CVE-2026-92240) * thunderbird: Thunderbird: Out-of-bounds read via maliciously constructed IMAP line (CVE-2026-92239) * thunderbird: Thunderbird: Memory safety violations via maliciously crafted mail headers (CVE-2026-92238) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVSS 7.5 · Alta · Corrección disponible

Publicación

2026-09-25T06:09:18.596271Z

Actualización

2026-09-25T06:30:02.654546591Z

Pila tecnológica: system

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