CVE-2006-1242

Linux <2.6.16 - DoS

Title source: llm

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.

References (28)

[Patch, Vendor Advisory] http://secunia.com/advisories/19402

[Vendor Advisory] http://www.redhat.com/support/errata/RHSA-2006-0437.html

[Vendor Advisory] http://www.redhat.com/support/errata/RHSA-2006-0575.html

[Vendor Advisory] https://usn.ubuntu.com/281-1/

[Vendor Advisory] http://www.mandriva.com/security/advisories?name=MDKSA-2006:086

[Vendor Advisory] http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm

[Vendor Advisory] http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm

[Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.1

[Vendor Advisory] http://www.novell.com/linux/security/advisories/2006-05-31.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/427622/100/0/threaded

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/427753/100/0/threaded

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/427893/100/0/threaded

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/428605/30/6210/threaded

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/17109

[Third Party Advisory] http://www.debian.org/security/2006/dsa-1097

[Third Party Advisory] http://www.debian.org/security/2006/dsa-1103

[Third Party Advisory, VDB Entry] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10317

[Third Party Advisory] http://secunia.com/advisories/19955

[Third Party Advisory] http://secunia.com/advisories/20157

[Third Party Advisory] http://secunia.com/advisories/20398

... and 8 more

Scores

EPSS 0.0304

EPSS Percentile 86.5%

Classification

Status draft

Affected Products (50)

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

... and 35 more

Timeline

Published Mar 15, 2006

Tracked Since Feb 18, 2026