CVE-2005-1935
Microsoft ASN.1 Library - Heap-based Buffer Overflow via Nested Constructed Bit Strings
Title source: llmDescription
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.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/20870
Exploit x_refsource_misc
http://www.phreedom.org/solar/exploits/msasn1-bitstring/
Scores
EPSS
0.2663
EPSS Percentile
97.8%
Details
Status
published
Products (5)
microsoft/windows_2000
(3 CPE variants)
microsoft/windows_2003_server
64-bit
microsoft/windows_2003_server
r2
microsoft/windows_nt
4.0 sp6 (3 CPE variants)
microsoft/windows_xp
(4 CPE variants)
Published
Jun 13, 2005
Tracked Since
Feb 18, 2026