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high7.5Public exploit code

CVE-2003-0818

Multiple integer overflows in Microsoft ASN.1 library (MSASN1.DLL), as used in LSASS.EXE, CRYPT32.DLL, and other Microsoft executables and libraries on Windows…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

Multiple integer overflows in Microsoft ASN.1 library (MSASN1.DLL), as used in LSASS.EXE, CRYPT32.DLL, and other Microsoft executables and libraries on Windows NT 4.0, 2000, and XP, allow remote attackers to execute arbitrary code via ASN.1 BER encodings with (1) very large length fields that cause arbitrary heap data to be overwritten, or (2) modified bit strings.

Affected products

VendorProductAffected versions
MicrosoftWindows 2000
All versions
MicrosoftWindows 2003 Server
Versions enterprise, enterprise_64-bit, r2, standard, web
MicrosoftWindows Nt
Version 4.0
MicrosoftWindows Xp
All versions

References