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Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade firefox-x11 | Aug 22, 2024 | Aug 6, 2024 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade firefox | Sep 19, 2024 | Aug 6, 2024 |
| Debian | — | Upgrade firefox-esr | Aug 8, 2024 | Aug 6, 2024 |
| Freebsd | — | Upgrade firefox | Aug 30, 2024 | Aug 30, 2024 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade dev-lang/spidermonkey.Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Dec 9, 2024 | Aug 6, 2024 |
| Mfsa2024 33 | — | Upgrade to Mozilla Firefox version 129.0Upgrade to the latest version of Mozilla Firefox | Aug 7, 2024 | Aug 6, 2024 |
| Mfsa2024 34 | — | Upgrade to Mozilla Firefox ESR version 115.14Upgrade to the latest version of Mozilla Firefox | Aug 7, 2024 | Aug 6, 2024 |
| Mfsa2024 35 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.1 | Aug 7, 2024 | Aug 6, 2024 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefox | Oct 16, 2024 | Aug 6, 2024 |
| Redhat_linux | — | Upgrade firefoxUpgrade firefox-x11No solution existsUpgrade firefox-debuginfoUpgrade firefox-debugsource | Aug 22, 2024 | Aug 6, 2024 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | May 8, 2025 | Aug 6, 2024 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-branding-sleUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-other | Aug 14, 2024 | Aug 6, 2024 |
| Ubuntu | — | Upgrade firefox | Aug 20, 2024 | Aug 6, 2024 |
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