Mozilla Firefox Security Updates(mfsa_2020-54_2020-56)-Windows

This host is installed with Mozilla Firefox and is prone to multiple vulnerabilities.

Multiple flaws exist due to, - Operations on a BigInt could have caused uninitialized memory to be exposed. - Heap buffer overflow in WebGL. - Use-After-Free in WebGL. - CSS Sanitizer performed incorrect sanitization. - Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free. - Malicious applications on Android could have induced Firefox for Android into sending arbitrary attacker-specified headers. - HTTPS pages could have been intercepted by a registered service worker when they should not have been. - URL spoofing via unresponsive port in Firefox for Android. - Internal network hosts could have been probed by a malicious webpage. - When entering an address in the address or search bars, a website could have redirected the user before they were navigated to the intended url. - The proxy.onRequest API did not catch view-source URLs. - Opening an extension-less download may have inadvertently launched an executable instead. - Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6. - Memory safety bugs fixed in Firefox 84.

Mozilla Firefox version before 84 on Windows.

Checks if a vulnerable version is present on the target host.

Upgrade to Mozilla Firefox version 84 or later, Please see the references for more information.