Free and open-source vulnerability scanner

Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.

Install Now

Available for macOS, Windows, and Linux

App screenshot

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

Information

Severity

Severity

Critical

Family

Family

General

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

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

Insight

Insight

Multiple flaws exist due to, - Operations on a BigInt could have caused uninitialized memory to be exposed. - Heap buffer overflow in WebGL. - CSS Sanitizer performed incorrect sanitization. - Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free. - Internal network hosts could have been probed by a malicious webpage. - 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.

Affected Software

Affected Software

Mozilla Firefox ESR version before 78.6 on Windows.

Detection Method

Detection Method

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

Solution

Solution

Upgrade to Mozilla Firefox ESR version 78.6 or later, Please see the references for more information.