Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2005-3945

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
01/12/2005
Last modified:
03/04/2025

Description

The SynAttackProtect protection in Microsoft Windows 2003 before SP1 and Windows 2000 before SP4 with Update Roll-up uses a hash of predictable data, which allows remote attackers to cause a denial of service (CPU consumption) via a flood of SYN packets that produce identical hash values, which slows down the hash table lookups.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools