Mozilla Foundation Security Advisory 2022-45 Security Vulnerabilities fixed in Firefox ESR 102.4 Announced: October 18, 2022 Impact: High Products: Firefox ESR Fixed in: Firefox ESR 102.4 CVE-2022-42927: Same-origin policy violation could have leaked cross-origin URLs Reporter: James Lee Impact: High Description: A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via performance.getEntries(). References: Bug 1789128 CVE-2022-42928: Memory Corruption in JS Engine Reporter: Samuel Groß Impact: High Description: Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific state, could have led to memory corruption and a potentially exploitable crash. References: Bug 1791520 CVE-2022-42929: Denial of Service via window.print Reporter: Andrei Enache Impact: Moderate Description: If a website called window.print() in a particular way, it could cause a denial of service of the browser, which may persist beyond browser restart depending on the user's session restore settings. References: Bug 1789439 CVE-2022-42932: Memory safety bugs fixed in Firefox 106 and Firefox ESR 102.4 Reporter: Mozilla developers and community Impact: Moderate Description: Mozilla developers Ashley Hale and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 105 and Firefox ESR 102.3. 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. References: Memory safety bugs fixed in Firefox 106 and Firefox ESR 102.4