high7.5
CVE-2005-1935
Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote attackers to execute arbitrary code via nested…
Impact
Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote attackers 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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 2000 | All versions |
| Microsoft | Windows 2003 Server | Versions 64-bit, r2 |
| Microsoft | Windows Nt | Version 4.0 |
| Microsoft | Windows Xp | All versions |