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IIS 5.0 WebDav Memory Leakage
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
18 years ago
Modified
Modified
5 years ago
Summary
The WebDav extensions (httpext.dll) for Internet Information Server 5.0 contains a flaw that may allow a malicious user to consume all available memory on the target server by sending many requests using the LOCK method associated to a non existing filename. This concern not only IIS but the entire system since the flaw can potentially exhausts all system memory available.
Affected Software
Affected Software
Vulnerable systems: IIS 5.0 ( httpext.dll versions prior to 0.9.3940.21 ) Immune systems: IIS 5 SP2( httpext.dll version 0.9.3940.21)
Solution
Solution
Download Service Pack 2/hotfixes from Microsoft.