| Summary | 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. |
|---|---|
| Publication Date | June 13, 2005, 1 p.m. |
| Registration Date | Jan. 29, 2021, 5:58 p.m. |
| Last Update | July 11, 2017, 10:32 a.m. |
| CVSS2.0 : HIGH | |
| Score | 7.5 |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | はい |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_2000:*:sp4:*:fr:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_2003_server:64-bit:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:terminal_server:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:workstation:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_xp:*:gold:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_xp:*:sp1:tablet_pc:*:*:*:*:* | |||||