DOS: IGMP Fragment
This signature detects attempts to exploit a known vulnerability against Microsoft Windows 98 and 2000 TCP/IP stacks. Attackers can send maliciously crafted malformed IGMP headers to cause a stack to fail, thereby creating a denial-of-service (DoS) condition.
Extended Description
The Windows 98 and Windows 2000 TCP/IP stacks were not built to reliably tolerate malformed IGMP headers. When one is received, the stack will sometimes fail with unpredictable results ranging from a Blue Screen to instantaneous reboot.
Affected Products
Microsoft windows_nt
References
BugTraq: 514
CVE: CVE-1999-0918
URL: http://www.microsoft.com/technet/security/bulletin/ms99-034.asp
Short Name
DOS:IP:FRAGMENT
Severity
Major
Recommended
False
Recommended Action
Drop
Category
DOS
Keywords
CVE-1999-0918 Fragment IGMP bid:514
Release Date
04/22/2003
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3336
Port
IP/2
False Positive
Unknown
Vendors
Microsoft
CVSS Score
7.8