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ALSA-2025:11747 — Important: firefox security update

Affected: AlmaLinux:8: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* firefox: thunderbird: Large branch table could lead to truncated instruction (CVE-2025-8028) * firefox: thunderbird: Memory safety bugs (CVE-2025-8035) * firefox: thunderbird: Incorrect URL stripping in CSP reports (CVE-2025-8031) * firefox: thunderbird: JavaScript engine only wrote partial return value to stack (CVE-2025-8027) * firefox: thunderbird: Potential user-assisted code execution in ?Copy as cURL? command (CVE-2025-8030) * firefox: Memory safety bugs (CVE-2025-8034) * firefox: thunderbird: Incorrect JavaScript state machine for generators (CVE-2025-8033) * firefox: thunderbird: XSLT documents could bypass CSP (CVE-2025-8032) * firefox: thunderbird: javascript: URLs executed on object and embed tags (CVE-2025-8029)

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.

bdu:2025-10490

certfr-2025-avi-0615 — De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un atta…

certfr-2025-avi-0615

cnvd-2025-20067

EUVD-2026-342401

fkie_cve-2025-8033

The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

GHSA-j6gx-vvh5-9mwh

The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.

OESA-2025-1933 — firefox security update

Affected: openEuler:22.03-LTS-SP3: firefox

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo Security Fix(es):

A vulnerability was found in Mozilla Thunderbird up to 140 on 64-bit (Mail Client Software). It has been classified as critical.CWE is classifying the issue as CWE-252. The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 141 eliminates this vulnerability.(CVE-2025-8027)

A vulnerability was found in Mozilla Firefox up to 140 on ARM64 (Web Browser). It has been declared as critical.The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 141 eliminates this vulnerability.(CVE-2025-8028)…

openSUSE-SU-2025:15371-1 — firefox-esr-140.1.0-1.1 on GA media

firefox-esr-140.1.0-1.1 on GA media

RHSA-2025:11797 — Red Hat Security Advisory: firefox security update

firefox: thunderbird: JavaScript engine only wrote partial return value to stack firefox: thunderbird: Large branch table could lead to truncated instruction firefox: thunderbird: javascript: URLs executed on object and embed tags firefox: thunderbird: Potential user-assisted code execution in “Copy as cURL” command firefox: thunderbird: Incorrect URL stripping in CSP reports firefox: thunderbird: XSLT documents could bypass CSP firefox: thunderbird: Incorrect JavaScript state machine for generators firefox: thunderbird: Memory safety bugs firefox: thunderbird: Memory safety bugs

SUSE-SU-2025:02531-1 — Security update for MozillaFirefox

Security update for MozillaFirefox

UBUNTU-CVE-2025-8033

Affected: Ubuntu:18.04:LTS: mozjs52, Ubuntu:18.04:LTS: mozjs38, Ubuntu:20.04:LTS: mozjs68, Ubuntu:20.04:LTS: mozjs52, Ubuntu:22.04:LTS: mozjs102, Ubuntu:22.04:LTS: mozjs78, Ubuntu:22.04:LTS: mozjs91, Ubuntu:22.04:LTS: thunderbird, Ubuntu:24.04:LTS: mozjs102, Ubuntu:24.04:LTS: mozjs115

WID-SEC-W-2025-1623 — Mozilla Firefox , Firefox ESR und Thunderbird: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen und andere, nicht näher definierte Angriffe durchzuführen.