NetSight
medium5.0

CVE-2006-1242

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-AC…

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
Versions 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5

References