Synopsis
The remote host is running a web browser that is vulnerable to a critical issue within the Network Security Services (NSS) library.
Description
Versions of Mozilla Firefox ESR prior to version 24.8.1 utilize a vulnerable version of the Network Security Services library for cryptographic functionality. The issue occurs from incorrectly check on signature padding, leading to potential signature forgery that can be leveraged for man-in-the-middle attacks over SSL.
Solution
Upgrade to Firefox ESR version 24.8.1, or later.