System access, DoS
From local network
Microsoft Windows NT 4.0 Server
Microsoft Windows NT 4.0 Server, Terminal Server Edition
Kostya Kortchinsky has reported two vulnerabilities in Microsoft
Windows NT, allowing malicious people to cause a DoS (Denial of
Service) or compromise a vulnerable system.
1) The vulnerability is caused due to an unchecked buffer during
logging of a certain value from specific network packets. This can be
exploited to cause the DHCP service to stop responding.
2) The vulnerability is caused due to an unchecked buffer in the
handling of DHCP request traffic. This can be exploited to cause a
buffer overflow and allow execution of arbitrary code.
Microsoft Windows NT Server 4.0 (requires Service Pack 6a):
Microsoft Windows NT Server 4.0 Terminal Server Edition (requires
Service Pack 6):
PROVIDED AND/OR DISCOVERED BY:
Kostya Kortchinsky, CERT Renater
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