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-ACK packets, which allows remote attackers to conduct an Idle Scan (nmap -sI) attack, which bypasses intended protections against such attacks.

Score

CVSS 2.0 5.0 Medium

Status

Modified - cve@mitre.org

Published

2006-03-15

Last modified

2024-08-07

Affected products

• Linux Kernel (Linux)

References

• http://secunia.com/advisories/19402
• http://secunia.com/advisories/19955
• http://secunia.com/advisories/20157
• http://secunia.com/advisories/20398
• http://secunia.com/advisories/20671
• http://secunia.com/advisories/20914
• http://secunia.com/advisories/21136
• http://secunia.com/advisories/21465
• http://secunia.com/advisories/21983
• http://secunia.com/advisories/22417
• http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
• http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
• http://www.debian.org/security/2006/dsa-1097
• http://www.debian.org/security/2006/dsa-1103
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.1
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:086
• http://www.novell.com/linux/security/advisories/2006-05-31.html
• http://www.redhat.com/support/errata/RHSA-2006-0437.html
• http://www.redhat.com/support/errata/RHSA-2006-0575.html
• http://www.securityfocus.com/archive/1/427622/100/0/threaded
• http://www.securityfocus.com/archive/1/427753/100/0/threaded
• http://www.securityfocus.com/archive/1/427893/100/0/threaded
• http://www.securityfocus.com/archive/1/428605/30/6210/threaded
• http://www.securityfocus.com/bid/17109
• http://www.vupen.com/english/advisories/2006/1140
• http://www.vupen.com/english/advisories/2006/2554
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10317
• https://usn.ubuntu.com/281-1/