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

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CVE-2006-1242

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
15/03/2006
Last modified:
03/04/2025

Description

The ip_push_pending_frames function in Linux 2.4.x and 2.6.x before 2.6.16 increments the IP ID field when sending a RST after receiving unsolicited TCP SYN-ACK packets, which allows remote attackers to conduct an Idle Scan (nmap -sI) attack, which bypasses intended protections against such attacks.

Impact

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

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

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

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test10:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test11:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test12:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.0:test9:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.4.2:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools