This security update resolves two privately reported vulnerabilities in the Windows Domain Name System (DNS) that could allow spoofing. These vulnerabilities exist in both the DNS client and DNS server and could allow a remote attacker to redirect network traffic intended for systems on the Internet to the attacker s own systems.
This security update is rated Important for all supported editions of Microsoft Windows 2000, Windows XP, Windows Server 2003, and Windows Server 2008. For more information, see the subsection, Affected and Non-Affected Software, in this section.
*Windows Server 2008 server core installation affected. For supported editions of Windows Server 2008, this update applies, with the same severity rating, whether or not Windows Server 2008 was installed using the Server Core installation option. For more information on this installation option, see Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.
* Windows Vista and Windows Vista Service Pack 1
* Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1
* Windows Server 2008 for Itanium-based Systems
*Windows Server 2008 server core installation affected. For supported editions of Windows Server 2008, this update applies, with the same severity rating, whether or not Windows Server 2008 was installed using the Server Core installation option.
DNS Insufficient Socket Entropy Vulnerability - CVE-2008-1447
A spoofing vulnerability exists in Windows DNS client and Windows DNS server. This vulnerability could allow a remote unauthenticated attacker to quickly and reliably spoof responses and insert records into the DNS server or client cache, thereby redirecting Internet traffic.
DNS Cache Poisoning Vulnerability - CVE-2008-1454
A cache poisoning vulnerability exists in Windows DNS Server. The vulnerability could allow an unauthenticated remote attacker to send specially crafted responses to DNS requests made by vulnerable systems, thereby poisoning the DNS cache and redirecting Internet traffic from legitimate locations.