The DNS server in Microsoft Windows Server 2003 SP2 and Windows Server 2008 SP2, R2, and R2 SP1 does not properly initialize memory, which allows remote attackers to cause a denial of service (service outage) via a query for a nonexistent domain, aka "DNS Uninitialized Memory Corruption Vulnerability."

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-1970
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12870
• http://www.us-cert.gov/cas/techalerts/TA11-221A.html