MFSA2024-35 Firefox: Security Vulnerabilities fixed in Firefox ESR 128.1 (CVE-2024-7524)
Description
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.
Solution(s)
- mozilla-firefox-esr-upgrade-128_1
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