CVE-2006-1242

MediumCVSS 5.0/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 5.0/10AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected software

No affected versions have been published.

Timeline

Published
Mar 15, 2006
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2006-1242: Medium severity, CVSS 5.0 | Vulnix