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Fortify Software: Fortify confirms serious Ubuntu/Debian security flaw
[May 20, 2008]

Fortify Software: Fortify confirms serious Ubuntu/Debian security flaw


(M2 PressWIRE Via Acquire Media NewsEdge)
RDATE:20052008

Fortify Software, the application vulnerability specialist, has
confirmed the findings of a research posting to the Debian security
list last week, which details a critical security vulnerability in the
OpenSSL packages within the Debian and Ubuntu Linux operating systems.

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.

The problem, Lee went on to say, stems from a bug fix issued by Debian
programmers that effectively emasculates the randomness engine required
to ensure true security within the SSL module.

"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.

For more on the Debian and Ubuntu Linux OpenSSL security flaw:


http://tinyurl.com/6b9nh6

CONTACT: Yvonne Eskenzi
Tel: +44 (0)20 71832 832
e-mail: [email protected]
Fortify Software
WWW: http://www.fortifysoftware.com

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