Fredrick Lee, a researcher with Fortify's Security Research Group, said that the posting understates the potential seriousness of the flaw, which affects the Open Secure Sockets Layer elements of the two Linux operating systems.
"We're calling this vulnerability `insecure randomness' since it allows an attacker to predict the SSL cryptographic keys used for supposedly secure online transactions," he said.
According to Lee, the serious flaw could, for example, allow a malicious user to intercept an ostensibly secure online banking session between a customer and their bank.
"What's worse is the fact our researchers calculate this flaw has been available to hackers for more than two years," he said.
"Had we been contacted as part of the release strategy, as a number of other developers do, then the flaw would have been immediately identified by our research team, before the insecure update was released to the public," he said.

Have you read these related articles?
Newsletter: