Cisco Patches Critical TCP Vulnerability
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From the 'Bigger Than DNS' files:
Cisco (NASDAQ:CSCO) now has a critical patch out for its IOS operating system fixing a TCP flaw that could trigger a Denial of Service (DoS) condition.
The TCP flaw is similar in nature to one that Microsoft patched as part of its September Patch Tuesday update. TCP is the core transport protocol for most web traffic and the flaw is one that is not trivial.
In other words, a flaw in TCP could have enabled a DoS attack.