Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote malicious users to execute arbitrary code via nested constructed bit strings, which leads to a realloc of a non-null pointer and causes the function to overwrite previously freed memory, as demonstrated using a SPNEGO token with a constructed bit string during HTTP authentication, and a different vulnerability than CVE-2003-0818. NOTE: the researcher has claimed that MS:MS04-007 fixes this issue.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
microsoft windows 2000 |
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microsoft windows nt 4.0 |
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microsoft windows xp |
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microsoft windows 2003 server 64-bit |
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microsoft windows 2003 server r2 |
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