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CVE-2006-1242

MEDIUM CVSS: 5.0 Published: 2006-03-15 Modified: 2026-06-16

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.

Affected Platforms

Linux Linux Kernel

Weakness Type

NVD-CWE-Other

References