Vulnerability Monitor

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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 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.

Published

2005-06-13T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    NVD-CWE-Other
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2003_server 64-bit Yes
Operating System microsoft windows_2003_server r2 Yes
Operating System microsoft windows_nt 4.0 Yes
Operating System microsoft windows_nt 4.0 Yes
Operating System microsoft windows_nt 4.0 Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
References