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ALSA-2025:16108 — Important: firefox security update

Affected: AlmaLinux:9: firefox, AlmaLinux:9: firefox-x11

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

Security Fix(es):

* firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: Canvas2D component (CVE-2025-10527) * firefox: thunderbird: Incorrect boundary conditions in the JavaScript: GC component (CVE-2025-10532) * firefox: thunderbird: Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component (CVE-2025-10528) * firefox: thunderbird: Same-origin policy bypass in the Layout component (CVE-2025-10529) * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143 (CVE-2025-10537) * firefox: thunderbird: Information disclosure in the Networking: Cache component (CVE-2025-10536) * firefox: thunderbird: Integer overflow in the SVG component (CVE-2025-10533)

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:2025-11384

certfr-2025-avi-0797 — De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un atta…

certfr-2025-avi-0797

cnvd-2025-24651

EUVD-2026-290727

fkie_cve-2025-10537

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

GHSA-579p-jcg6-h5r2

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

OESA-2025-2340 — firefox security update

Affected: openEuler:24.03-LTS-SP1: 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):

This vulnerability affects Firefox versions prior to 143 and Firefox ESR versions prior to 140.3. Specific vulnerability type and impact details require further confirmation.(CVE-2025-10527)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10528)

This vulnerability affects Firefox versions earlier than 143 and Firefox ESR versions earlier than 140.3. The vulnerability may lead to security bypass or other security issues.(CVE-2025-10529)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10532)

This vulnerability affects Firefox < 143, Firefox ESR < 115.28, and Firefox ESR < 140.3. Specific vulnerability details require further analysis.(CVE-2025-10533)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10536)

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Som…

openSUSE-SU-2025:15555-1 — firefox-esr-140.3.0-1.1 on GA media

firefox-esr-140.3.0-1.1 on GA media

RHSA-2025:17340 — Red Hat Security Advisory: thunderbird security update

idna: idna accepts Punycode labels that do not produce any non-ASCII when decoded firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: Canvas2D component firefox: thunderbird: Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component firefox: thunderbird: Same-origin policy bypass in the Layout component firefox: thunderbird: Incorrect boundary conditions in the JavaScript: GC component firefox: thunderbird: Integer overflow in the SVG component firefox: thunderbird: Information disclosure in the Networking: Cache component firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143

SUSE-SU-2025:03287-1 — Security update for MozillaFirefox

Security update for MozillaFirefox

UBUNTU-CVE-2025-10537

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-2025-2074 — Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial-of-Service Angriff durchzuführen, um falsche Informationen darzustellen, um Code auszuführen und um Informationen offenzulegen.