Microsoft has issued a security advisory in response to reports of a flaw in Windows that could allow denial of service attacks.
The advisory acknowledged the issue but said the problem was addressed in a patch issued last month. It also said that systems running Windows XP with Service Pack 2 (SP2) were not vulnerable, and that Windows Server with SP1 was also protected.
The Microsoft security advisory service is designed to confirm reports of flaws and provide users with information on how to protect themselves, either by pointing to patches already available or providing a workaround.
The advisory issued for the potential denial of service attack was a response to a report from the French Security Incident Response Team, which referred to a flaw in the way Microsoft implemented the TCP/IP network protocol in Windows.
Microsoft said it was not aware of any attacks that had exploited the vulnerability, and that the flaw was not a “significant threat to the security of the internet”.